CIDCO INC
8-A12G, 1997-02-04
TELEPHONE & TELEGRAPH APPARATUS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                               ------------------

                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                               CIDCO Incorporated
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

     Delaware                                                  13-3500734
- --------------------------------------------------------------------------------
(State of organization or incorporation)                     (IRS Employer
                                                          Identification No.)

  220 Cochrane Circle, Morgan Hill, California                  95037
- --------------------------------------------------------------------------------
(Address of principal executive offices)                      (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

    Title of each class                         Name of each exchange on which
    to be so registered                         each class is to be registered
    -------------------                         ------------------------------

          None                                            ---------

If this Form relates to the  registration  of a class of debt  securities
and is effective upon filing  pursuant to General  Instruction  A.(c)(1),
please check the following box.                                             { }

If this Form relates to the  registration  of a class of debt  securities
and is to become  effective  simultaneously  with the  effectiveness of a
concurrent  registration  statement  under  the  Securities  Act of  1933
pursuant to General Instruction A.(c)(2), please check the following box.   { }

Securities to be registered pursuant to Section 12(g) of the Act:

     Rights to Purchase Series A Junior Participating Preferred Stock
- --------------------------------------------------------------------------------
                             (Title of Class)



<PAGE>



Item 1.      Description of Registrant's Securities to be Registered.

         On January 27, 1997,  the Board of Directors of CIDCO  Incorporated,  a
Delaware  corporation (the "Company") declared a dividend of one preferred share
purchase right (a "Right") for each outstanding share of common stock, par value
$0.01 per share (the "Common Shares"),  of the Company.  The dividend is payable
to all  holders of record of Common  Shares on February  14,  1997 (the  "Record
Date"),  and with respect to Common Shares issued  thereafter until the earliest
to occur of the  Distribution  Date (as  defined  below),  the date on which the
Rights are redeemed or exchanged, and the expiration date of the Rights (January
27, 2007) and, in certain  circumstances  with respect to Common  Shares  issued
after the  Distribution  Date.  Except as set forth below,  each Right,  when it
becomes exercisable, entitles the registered holder to purchase from the Company
one one-thousandth of a share of Series A Junior Participating  Preferred Stock,
par value $0.01 per share (the "Preferred  Shares"),  of the Company, at a price
of $95.00 per one  one-thousandth  of a Preferred Share (the "Purchase  Price"),
subject to adjustment.  The description and terms of the Rights are set forth in
a Rights  Agreement  (the  "Rights  Agreement")  between  the Company and United
States Trust Company of New York, as Rights Agent (the "Rights Agent"), dated as
of January  27,  1997,  a copy of which is attached  hereto as an  exhibit.  The
following  description  of the Rights is  qualified  by  reference to the Rights
Agreement.

         Initially, the Rights will be attached to all certificates representing
Common  Shares then  outstanding,  and no separate  Right  Certificates  will be
distributed.  The Rights will  separate from the Common Shares upon the earliest
to occur of (i) ten days following a public  announcement that a person or group
of  affiliated  or associated  persons have  acquired,  or obtained the right to
acquire,  beneficial  ownership of 15% or more of the outstanding  Common Shares
(except  pursuant to a Permitted  Offer,  as hereinafter  defined);  or (ii) ten
business  days (or such  later  date as the Board of  Directors  may  determine)
following the commencement of, or announcement of an intention to make, a tender
offer or exchange  offer the  consummation  of which would result in a person or
group  becoming an Acquiring  Person (as  hereinafter  defined) (the earliest of
such dates being called the "Distribution  Date").  Except for the Grandfathered
Stockholder,  as set forth in the Rights  Agreement,  any person or group  whose
acquisition of Common Shares causes a  Distribution  Date pursuant to clause (i)
above is an  "Acquiring  Person."  The date  that a person or group  becomes  an
Acquiring Person is the "Shares Acquisition Date."

         The Rights Agreement  provides that,  until the Distribution  Date, the
Rights  will be  transferred  with and only with the  Common  Shares.  Until the
Distribution  Date (or earlier  redemption  or  expiration  of the Rights),  new
Common  Share  certificates  issued  after the Record Date upon  transfer or new
issuance  of Common  Shares  will  contain a notation  incorporating  the Rights
Agreement by reference.  Until the Distribution  Date (or earlier  redemption or
expiration of the Rights),  the surrender for transfer of any  certificates  for
Common Shares outstanding as of the Record Date, even without such notation or a
copy of the Company's  Summary of Rights document being attached  thereto,  will
also  constitute  the transfer of the Rights  associated  with the Common Shares
represented  by  such  certificate.   As  soon  as  practicable   following  the
Distribution  Date,   separate   certificates   evidencing  the  Rights  ("Right
Certificates")  will be mailed to holders  of record of the Common  Shares as of
the close of business on the Distribution Date (and to each initial record



                                       -2-

<PAGE>



holder of certain Common Shares issued after the  Distribution  Date),  and such
separate Right Certificates alone will evidence the Rights.

         The Rights are not exercisable until the later of the Distribution Date
or the effective date of an  registration  statement under the Securities Act of
1933,  with respect to the securities  purchasable  upon exercise of the Rights,
and will expire at the close of business on January  27,  2007,  unless  earlier
redeemed or exchanged by the Company as described below.

         In the event  that any  person  becomes  an  Acquiring  Person  (except
pursuant  to a tender or  exchange  offer  which is for all  outstanding  Common
Shares at a price and on terms which a majority of certain  members of the Board
of Directors  determines to be adequate and in the best interest of the Company,
its  stockholders and other relevant  constituencies,  other than such Acquiring
Person, its affiliates and associates (a "Permitted  Offer")),  each holder of a
Right will  thereafter  have the right  (the  "Flip-In  Right") to receive  upon
exercise thereof at the then current exercise price of the Right, that number of
one   one-thousandths   of  a  share  of   Preferred   Shares  (or,  in  certain
circumstances,  other  securities  of the Company)  having a value  (immediately
prior to such  triggering  event) equal to two times the  exercise  price of the
Right.  Notwithstanding  the  foregoing,  following the  occurrence of the event
described above, all Rights that are, or (under certain circumstances  specified
in the Rights Agreement) were, beneficially owned by any Acquiring Person or any
affiliate or associate thereof will be null and void.

         In the event that, at any time following the Shares  Acquisition  Date,
(i)  the  Company  is  acquired  in  a  merger  or  other  business  combination
transaction, or (ii) more than 50% of the Company's (including its Subsidiaries)
assets or earning power is sold or  transferred,  in either case, with or to any
other person,  then each holder of a Right (except Rights which  previously have
been voided as set forth above) shall  thereafter have the right (the "Flip-Over
Right") to receive,  upon exercise thereof at the then current exercise price of
the Right, that number of common shares of the acquiring company or in case of a
sale of assets,  the common shares of the person  obtaining the greatest portion
of the assets or earning  power  transferred,  having a value equal to two times
the exercise price of the Right. The holder of a Right will continue to have the
Flip-Over  Right whether or not such holder  exercises or surrenders the Flip-In
Right.

         The Purchase Price payable,  and the number of one  one-thousandth of a
Preferred Share,  common shares or other securities  issuable,  upon exercise of
the Rights are subject to adjustment  from time to time to prevent  dilution (i)
in  the  event  of a  stock  dividend  on,  or  a  subdivision,  combination  or
reclassification of, the Preferred Shares, (ii) upon the grant to holders of the
Preferred  Shares of certain  rights or  warrants to  subscribe  for or purchase
Preferred  Shares at a price, or securities  convertible  into Preferred  Shares
with a  conversion  price,  less  than  the  then  current  market  price of the
Preferred  Shares or (iii) upon the  distribution  to  holders of the  Preferred
Shares of evidences of indebtedness or assets (excluding  regular quarterly cash
dividends) or of  subscription  rights or warrants (other than those referred to
above).

         The number of outstanding Rights and the number of one  one-thousandths
of a Preferred  Share  issuable  upon exercise of each Right are also subject to
adjustment in the event of a stock split



                                       -3-

<PAGE>



of the Common Shares or a stock  dividend on the Common Shares payable in Common
Shares or  subdivisions,  consolidations  or  combinations  of the Common Shares
occurring, in any such case, prior to the Distribution Date.

         Preferred  Shares  purchasable  upon exercise of the Rights will not be
redeemable.  Each  Preferred  Share will be entitled  to a minimum  preferential
quarterly  dividend  payment  of $10.00 per share,  but will be  entitled  to an
aggregate  dividend  per share of 1,000 times the  dividend  declared per Common
Share. In the event of liquidation,  the holders of the Preferred Shares will be
entitled to a minimum preferential liquidation payment of $1,000 per share, with
the  liquidation  payment to holders of  Preferred  Shares to be 1,000 times the
aggregate  amount,  if any, to be distributed to the Common  Shareholders.  Each
Preferred  Share will have 1,000 votes,  voting together with the Common Shares.
Finally, in the event of any merger, consolidation or other transaction in which
Common Shares are exchanged,  each  Preferred  Share will be entitled to receive
1,000 times the amount received per Common Share.  These rights are protected by
customary antidilution provisions.

         Because of the nature of the Preferred  Shares'  dividend,  liquidation
and voting  rights,  the value of the one  one-thousandth  of a Preferred  Share
purchasable  upon  exercise of each Right  should  approximate  the value of one
Common Share.

         With certain  exceptions,  no adjustment in the Purchase  Price will be
required until  cumulative  adjustments  require an adjustment of at least 1% in
such Purchase Price. No fractional  Preferred  Shares will be issued (other than
fractions   which  are  one   one-thousandth   or  integral   multiples  of  one
one-thousandth of a Preferred Share,  which may, at the election of the Company,
be evidenced by depositary  receipts) and in lieu thereof, an adjustment in cash
will be made  based on the  market  price of the  Preferred  Shares  on the last
trading day prior to the date of exercise.

         At any time after any person becomes an Acquiring Person,  the Board of
Directors of the Company may exchange  all or part of the then  outstanding  and
exercisable  Rights (other than Rights that have become void as described above)
for Common  Shares of the Company at an exchange  ratio of one Common  Share per
Right.  The Board of Directors is not  empowered to effect such  exchange at any
time after any person  (other than the Company,  any  Subsidiary of the Company,
any employee  benefit plan of the Company,  or any such  Subsidiary,  any entity
holding Common Shares for or pursuant to the terms of any such a plan), together
with all affiliates and associates of such person,  becomes the beneficial owner
of 50% or more of the Common Shares then outstanding.


         At any time prior to the  earlier to occur of (i) a person  becoming an
Acquiring  Person or (ii) the expiration of the Rights,  and under certain other
circumstances, the Company may redeem the Rights in whole, but not in part, at a
price of $0.01 per Right (the  "Redemption  Price")  which  redemption  shall be
effective upon the action of the Board of Directors.

         All of the  provisions  of the Rights  Agreement  may be amended by the
Board of  Directors of the Company  prior to the  Distribution  Date.  After the
Distribution Date, the provisions of the



                                       -4-

<PAGE>



Rights  Agreement  may be amended  by the Board in order to cure any  ambiguity,
defect or  inconsistency,  to make  changes  which do not  adversely  affect the
interests  of  holders  of Rights  (excluding  the  interests  of any  Acquiring
Person),  or,  subject to certain  limitations,  to shorten or lengthen any time
period under the Rights Agreement.

         Until a Right is exercised,  the holder thereof,  as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive  dividends.  While the distribution of the Rights will not
be taxable to stockholders of the Company,  stockholders may, depending upon the
circumstances,  recognize taxable income should the Rights become exercisable or
upon the occurrence of certain events thereafter.

Item 2.      Exhibits.

                1.    Rights  Agreement  dated as of January  27,  1997  between
                      CIDCO Incorporated (the "Company") and United States Trust
                      Company of New York, as Rights Agent.

                2.    Form  of  Certificate  of  Designation,   Number,  Powers,
                      Preferences  and  Relative,  Participating,  Optional  and
                      other  Special  Rights  and  Qualifications,  Limitations,
                      Restrictions and other  Distinguishing  Characteristics of
                      Series  A  Junior  Participating  Preferred  Stock  of the
                      Company  (attached  as Exhibit A to the  Rights  Agreement
                      filed as Exhibit 1 hereto).

                3.    Form of Right  Certificate  (attached  as Exhibit B to the
                      Rights Agreement filed as Exhibit 1 hereto).



                                    SIGNATURE

         Pursuant to the  requirements of Section 12 of the Securities  Exchange
Act of 1934, the registrant  has duly caused this  registration  statement to be
signed on its behalf by the undersigned, thereunto duly authorized.


Date: February 3, 1997                  CIDCO INCORPORATED



                                        By: /s/ Paul G. Locklin
                                            -----------------------
                                        Name:  Paul G. Locklin
                                        Title: President



                                       -5-

<PAGE>



                                EXHIBIT INDEX
                                -------------




Exhibit                        Description
- -------                        -----------

  1                   Rights  Agreement  dated as of January
                      27, 1997,  between CIDCO  Incorporated
                      (the   "Company")  and  United  States
                      Trust  Company of New York,  as Rights
                      Agent.

  2                   Form of  Certificated  of Designation,
                      Number,   Powers,    Preferences   and
                      Relative, Participating,  Optional and
                      other      Special      Rights     and
                      Qualifications,           Limitations,
                      Restrictions and other  Distinguishing
                      Characteristics  of  Series  A  Junior
                      Participating  Preferred  Stock of the
                      Company  (attached as Exhibit A to the
                      Rights  Agreement  filed as  Exhibit 1
                      hereto).

  3                   Form of Right Certificate (attached as
                      Exhibit  B  to  the  Rights  Agreement
                      filed as Exhibit 1 hereto).





                             -6-

<PAGE>












                                   EXHIBIT 1
                                   ---------




<PAGE>

- -------------------------------------------------------------------------------





                                RIGHTS AGREEMENT

                                     between

                               CIDCO INCORPORATED

                                       and

                           UNITED STATES TRUST COMPANY
                          OF NEW YORK, as Rights Agent





                          Dated as of January 27, 1997







- -------------------------------------------------------------------------------





<PAGE>



                                TABLE OF CONTENTS

                                                                          Page

Section 1.        Certain Definitions........................................1

Section 2.        Appointment of Rights Agent................................7

Section 3.        Issue of Right Certificates................................7

Section 4.        Form of Right Certificates................................10

Section 5.        Execution, Countersignature and Registration..............11

Section 6.        Transfer, Split Up, Combination and Exchange of Right
                  Certificates; Mutilated, Destroyed, Lost or Stolen
                  Right Certificate.........................................12

Section 7.        Exercise of Rights; Purchase Price;
                  Expiration Date of Rights.................................13

Section 8.        Cancellation and Destruction of Right Certificates........17

Section 9.        Reservation and Availability of Preferred Shares..........18

Section 10.       Preferred Shares Record Date..............................20

Section 11.       Adjustment of Purchase Price, Number of Shares
                  or Number of Rights.......................................21

Section 12.       Certificate of Adjusted Purchase Price or
                  Number of Shares..........................................33

Section 13.       Consolidation, Merger or Sale or Transfer
                  of Assets or Earning Power................................33

Section 14.       Fractional Rights and Fractional Shares...................38

Section 15.       Rights of Action..........................................40

Section 16.       Agreement of  Right Holders...............................41

Section 17.       Right Certificate Holder Not Deemed a Shareholder.........42

Section 18.       Concerning the Rights Agent...............................42



                                       -i-

<PAGE>




Section 19.       Merger or Consolidation or Change of Name of
                  Rights Agent..............................................43

Section 20.       Duties of Rights Agent....................................44

Section 21.       Change of Rights Agent....................................47

Section 22.       Issuance of New Right Certificates........................48

Section 23.       Redemption................................................49

Section 24.       Exchange..................................................51

Section 25.       Notice of Certain Events..................................53

Section 26.       Notices...................................................54

Section 27.       Supplements and Amendments................................55

Section 28.       Determination and Actions by the Board of
                  Directors, Etc............................................56

Section 29.       Successors................................................57

Section 30.       Benefits of this Rights Agreement.........................57

Section 31.       Severability..............................................57

Section 32.       Governing Law.............................................58

Section 33.       Counterparts..............................................58

Section 34.       Descriptive Headings......................................58




                                      -ii-

<PAGE>



                       DEFINED TERM CROSS REFERENCE SHEET


Acquiring Person.........................................   Section 1(a)
Act......................................................   Section 1(b)
Adjustment Shares........................................   Section 11(a)(ii)
Adjusted Number of Shares................................   Section 11(a)(iii)
Adjusted Purchase Price..................................   Section 11(a)(iii)
Affiliate................................................   Section 1(c)
Agreement................................................   Preface
Appointment of Rights Agent..............................   Section 2
Associated...............................................   Section 1(c)
Beneficial Owner.........................................   Section 1(d)
Beneficially Own.........................................   Section 1(d)
Business Day.............................................   Section 1(e)
Capital Stock Equivalent.................................   Section 11(a)(iii)
Close of Business........................................   Section 1(f)
Common Shares............................................   Section 1(g)
Company..................................................   Preface
Current Per Share Market Price...........................   Section 11(d)
Distribution Date........................................   Section 3(a)
Equivalent Preferred Shares..............................   Section 11(b)
Exchange Act.............................................   Section 1(c)
Final Expiration Date....................................   Section 7(a)
Grandfathered Stockholder................................   Section 1(j)
Interested Stockholder...................................   Section 1(k)
Permitted Offer..........................................   Section 1(l)
Person...................................................   Section 1(m)



                                      -iii-

<PAGE>



Preferred Shares........................................    Section 1(n)
Principal Party.........................................    Section 13(b)
Proration Factor........................................    Section 11(a)(iii)
Purchase Price..........................................    Section 4(a)
Record Date.............................................    Preface
Redemption Date.........................................    Section 7(a)
Redemption Price........................................    Section 23
Right...................................................    Preface
Right Certificate.......................................    Section 3(a)
Rights Agent............................................    Preface
Section 11(a)(ii) Event.................................    Section 1(p)
Section 13 Event........................................    Section 13(a)
Security................................................    Section 11(d)(i)
Shares Acquisition Date.................................    Section 1(r)
Subsidiary..............................................    Section 1(s)
Summary of Rights.......................................    Section 3(b)
Then Outstanding........................................    Section 1(d)(iii)
Trading Date............................................    Section 11(d)(i)
Triggering Event........................................    Section 1(t)

                                  * * * * * * *



                                      -iv-

<PAGE>




                                RIGHTS AGREEMENT


         Rights  Agreement,   dated  as  of  January  27,  1997,  between  CIDCO
Incorporated,  a Delaware  corporation (the "Company"),  and United States Trust
Company of New York, a New York corporation (the "Rights Agent").

         The Board of  Directors  of the Company has  authorized  and declared a
dividend of one preferred share purchase right (a "Right") for each Common Share
(as  hereinafter  defined) of the Company  outstanding on February 14, 1997 (the
"Record Date"), each Right representing the right to purchase one one-thousandth
of a Preferred  Share,  upon the terms and subject to the conditions  herein set
forth,  and has further  authorized  and directed the issuance of one Right with
respect to each Common  Share that shall become  outstanding  between the Record
Date and the earliest of the  Distribution  Date,  the  Redemption  Date and the
Final  Expiration  Date (as  such  terms  are  hereinafter  defined),  provided,
however,  that  Rights may be issued  with  respect to Common  Shares that shall
become  outstanding  after the Distribution Date and prior to the earlier of the
Redemption Date and the Final  Expiration Date in accordance with the provisions
of Section 22 of this Rights Agreement.

         Accordingly, in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

         Section 1.  Certain Definitions. For purposes of this Rights Agreement,
the following terms have the meanings indicated:

         (a)  "Acquiring  Person"  shall  mean  any  Person  (as  such  term  is
hereinafter  defined) who or which,  together with all Affiliates and Associates
(as such terms are hereinafter  defined) of such Person, shall be the Beneficial
Owner (as such term is hereinafter defined) of 15% or more of the




<PAGE>



Common  Shares of the Company  then  outstanding,  but shall not include (i) the
Company,  (ii) any  Subsidiary  (as such  term is  hereinafter  defined)  of the
Company, (iii) any employee benefit plan of the Company or any Subsidiary of the
Company, (iv) any entity holding Common Shares of the Company for or pursuant to
the   terms  of  any  such   plan,   or  (v)  any   Grandfathered   Stockholder.
Notwithstanding  the foregoing,  no Person shall become an "Acquiring Person" as
the result of an acquisition of Common Shares of the Company by the Company or a
by  Subsidiary  of  the  Company  which,   by  reducing  the  number  of  shares
outstanding,  increases the proportionate number of shares beneficially owned by
such Person to 15% or more of the Common Shares of the Company then  outstanding
(or 25% or more of the Common  Shares of the  Company  then  outstanding  by the
Grandfathered  Stockholder);  provided,  however,  that if a Person  becomes the
Beneficial  Owner  of 15% or more  of the  Common  Shares  of the  Company  then
outstanding (or 25% or more of the Common Shares of the Company then outstanding
by the Grandfathered Stockholder) by reason of share purchases by the Company or
a Subsidiary of the Company and shall, after such share purchases by the Company
or a Subsidiary of the Company,  become the  Beneficial  Owner of any additional
Common  Shares  of the  Company,  then  such  Person  shall be  deemed  to be an
"Acquiring Person".

         (b)  "Act" shall  mean  the Securities Act  of 1933, as amended  and in
effect on the date of this Rights Agreement.

         (c)  "Affiliate"  and  "Associate"  shall have the respective  meanings
ascribed  to such  terms in Rule  12b-2 of the  General  Rules  and  Regulations
promulgated under the Securities Exchange Act of 1934, as amended , as in effect
on the date of this Rights Agreement (the "Exchange Act").



                                       -2-

<PAGE>



         (d)      A Person shall be deemed the "Beneficial Owner" of and shall
be deemed to "Beneficially Own" any securities:

                   (i) which such Person or any of such  Person's  Affiliates or
         Associates  is deemed to  beneficially  own within the  meaning of Rule
         13d-3 of the General Rules and Regulations under the Exchange Act;

                  (ii) which such Person or any of such  Person's  Affiliates or
         Associates  has (A)  the  right  to  acquire  (whether  such  right  is
         exercisable  immediately or only after the passage of time) pursuant to
         any  agreement,  arrangement  or  understanding  (other than  customary
         agreements with and between underwriters and selling group members with
         respect to a bona fide  public  offering  of  securities),  or upon the
         exercise of conversion rights,  exchange rights, rights (other than the
         Rights),  warrants or options,  or otherwise  (whether  such rights are
         exercisable  immediately or only after the passage of time);  provided,
         however,  that a Person shall not be deemed the Beneficial Owner of, or
         to  beneficially  own,  securities  tendered  pursuant  to a tender  or
         exchange  offer  made by or on  behalf  of such  Person  or any of such
         Person's  Affiliates or Associates  until such tendered  securities are
         accepted for purchase or exchange; or (B) the right to vote pursuant to
         any agreement, arrangement or understanding;  provided, however, that a
         Person shall not be deemed the Beneficial  Owner of, or to beneficially
         own, any security if the  agreement,  arrangement or  understanding  to
         vote such security (1) arises solely from a revocable  proxy or consent
         given  to  such  Person  in  response  to a  public  proxy  or  consent
         solicitation  made pursuant to, and in accordance  with, the applicable
         rules and regulations promulgated under the Exchange Act and (2) is not
         also then



                                       -3-

<PAGE>



         reportable on Schedule 13D under the Exchange Act (or any comparable or
         successor report); or

                  (iii) which are beneficially owned, directly or indirectly, by
         any  other  Person  with  which  such  Person  or any of such  Person's
         Affiliates   or   Associates   has  any   agreement,   arrangement   or
         understanding   (other  than  customary  agreements  with  and  between
         underwriters  and selling  group  members  with  respect to a bona fide
         public offering of securities)  for the purpose of acquiring,  holding,
         voting  (except to the extent  contemplated  by the  proviso to Section
         1(d)(ii)(B)) or disposing of any securities of the Company.

                  Notwithstanding  anything  in this  definition  of  Beneficial
         Ownership to the  contrary,  the phrase "then  outstanding,"  when used
         with reference to a Person's Beneficial  Ownership of securities of the
         Company,  shall  mean the  number of such  securities  then  issued and
         outstanding  together  with  the  number  of such  securities  not then
         actually  issued and  outstanding  which such Person would be deemed to
         own beneficially hereunder.

         (e) "Business Day" shall mean any day other than a Saturday,  a Sunday,
or a day on which banking  institutions  in the State of New York are authorized
or obligated by law or executive order to close.

         (f) "Close of  Business"  on any given  date shall mean 5:00 P.M.,  New
York time, on such date; provided,  however, that if such date is not a Business
Day, it shall mean 5:00 P.M.,  New York time,  on the next  succeeding  Business
Day.

         (g) "Common  Shares" when used with reference to the Company shall mean
the shares of common stock, par value $0.01 per share, of the Company or, in the
event of a subdivision, combination or consolidation with respect to such shares
of common stock, the shares of common



                                       -4-

<PAGE>



stock resulting from such  subdivision,  combination or  consolidation.  "Common
Shares" when used with reference to any Person other than the Company shall mean
the class of capital stock (or equity  interest) of such other Person having the
greatest  voting  power in the election of such  Person's  board of directors or
other governing body or, if such other Person is a Subsidiary of another Person,
such class of capital stock (or equity  interest) of the entity which ultimately
controls such first-mentioned Person.

         (h) "Distribution Date" shall have the meaning set forth in Section 3
hereof.

         (i) "Final Expiration Date" shall have the meaning set forth in Section
7 hereof.

         (j) "Grandfathered Stockholder" shall mean at any time J. & W. Seligman
("Seligman") if it is at the time in question still the Beneficial  Owner of all
or part of the  2,896,000  Common  Shares  which  the  Company  understands  are
beneficially  owned by Seligman on the date of this Rights Agreement;  provided,
however,  that Seligman  shall not be a  Grandfathered  Shareholder  if Seligman
makes an  acquisition  of Common Shares that would increase its ownership to 25%
or more of the Common Shares, and provided,  further,  that if at any time after
the date of this Rights Agreement  Seligman  beneficially  owns less than 15% of
the Common Shares of the Company then  outstanding  Seligman shall thereafter no
longer be a Grandfathered Stockholder.

         (k)  "Interested  Stockholder"  shall mean any Acquiring  Person or any
Affiliate or  Associate of an Acquiring  Person or any other Person in which any
such  Acquiring  Person,  Affiliate or Associate  has an interest,  or any other
Person  acting  directly or  indirectly on behalf of or in concert with any such
Acquiring Person, Affiliate or Associate.

         (l)  "Permitted  Offer" shall mean a tender or exchange  offer which is
for all outstanding  Common Shares at a price and on terms determined,  prior to
the purchase of shares under such



                                       -5-

<PAGE>



tender or exchange  offer, by at least a majority of the members of the Board of
Directors who are not officers of the Company and who are not Acquiring  Persons
or Affiliates,  Associates,  nominees or representatives of an Acquiring Person,
to be  adequate  (taking  into  account  all factors  that such  Directors  deem
relevant including, without limitation, prices that could reasonably be achieved
if the Company or its assets were sold on an orderly  basis  designed to realize
maximum  value) and  otherwise  in the best  interests  of the  Company  and its
stockholders  (other than the Person or any  Affiliate or  Associate  thereof on
whose basis the offer is being made)  taking into  account all factors that such
Directors may deem relevant.

         (m) "Person"  shall mean any  individual,  firm,  corporation  or other
entity, and shall include any successor (by merger or otherwise) of such entity.

         (n)   "Preferred   Shares"   shall  mean  shares  of  Series  A  Junior
Participating  Preferred  Stock,  par value of $0.01  per share of the  Company,
having the relative rights, preferences and limitations set forth in the Form of
Certificate of Designation attached to this Agreement as Exhibit A.

         (o)  "Redemption  Date"  shall have the  meaning set forth in Section 7
hereof.

         (p) "Section 11(a)(ii) Event" shall mean any event described in Section
11(a)(ii) hereof.

         (q)  "Section 13 Event"  shall mean any event  described in clause (x),
(y) or (z) of Section 13(a) hereof.

         (r)  "Shares  Acquisition  Date"  shall  mean the first  date of public
announcement  (which,  for purposes of this definition,  shall include,  without
limitation,  a report filed  pursuant to the Exchange  Act) by the Company or an
Acquiring Person that an Acquiring Person has become such.



                                       -6-

<PAGE>



         (s)  "Subsidiary"  of any Person  shall mean any  corporation  or other
entity of which a majority of the voting power of the voting  equity  securities
or equity interest is owned, directly or indirectly, by such Person.

         (t)  "Triggering  Event" shall mean any Section  11(a)(ii) Event or any
Section 13 Event.

         Section 2. Appointment of Rights Agent. The Company hereby appoints the
Rights Agent to act as agent for the Company and the holders of the Rights (who,
in accordance with Section 3 hereof,  shall prior to the Distribution  Date also
be the holders of the Common Shares) in accordance with the terms and conditions
hereof,  and the Rights Agent hereby accepts such  appointment.  The Company may
from time to time  appoint  such  co-Rights  Agents as it may deem  necessary or
desirable.

         Section 3. Issue of Right  Certificates.  (a) Until the  earlier of (i)
the tenth day after the Shares  Acquisition  Date or (ii) the tenth Business Day
(or such later  date as may be  determined  by action of the Board of  Directors
prior to such time as any Person becomes an Acquiring  Person) after the date of
the  commencement  by any Person (other than the Company,  any Subsidiary of the
Company,  any employee  benefit plan of the Company or of any  Subsidiary of the
Company, or any entity holding Common Shares for or pursuant to the terms of any
such  plan) of, or of the first  public  announcement  of the  intention  of any
Person  (other than the Company,  any  Subsidiary  of the Company,  any employee
benefit plan of the Company or of any  Subsidiary of the Company,  or any entity
holding  Common  Shares  for or  pursuant  to the  terms  of any  such  plan) to
commence,  a tender or exchange offer, the consummation of which would result in
any Person becoming an Acquiring Person (including,  in the case of both (i) and
(ii),  any such date which is after the date of this Rights  Agreement and prior
to the issuance of the Rights), the earlier of such dates being herein referred



                                       -7-

<PAGE>



to as the "Distribution  Date", (x) the Rights will be evidenced (subject to the
provisions  of Section  3(b)  hereof)  by the  certificates  for  Common  Shares
registered in the names of the holders thereof (which certificates shall in each
case  also  be  deemed  to be  Right  Certificates)  and not by  separate  Right
Certificates,   and  (y)  the  right  to  receive  Right  Certificates  will  be
transferable  only in  connection  with the  transfer of the  underlying  Common
Shares  (including  a transfer to the  Company);  provided,  however,  that if a
tender offer is terminated  prior to the occurrence of a Dis tribution  Date, no
Distribution  Date  shall  occur as a result of such  tender  offer.  As soon as
practicable  after the Distribution  Date, the Company will prepare and execute,
the Rights Agent will countersign, and the Company will send or cause to be sent
(and the Rights Agent will, if requested, send) by first-class,  postage-prepaid
mail,  to each record holder of Common Shares as of the close of business on the
Distribution  Date,  at the address of each such holder  shown on the records of
the Company  (which  records  shall be provided to the Rights  Agent if it is to
make such mailing), a Right Certificate,  in substantially the form of Exhibit B
hereto (a "Right  Certificate"),  evidencing  one Right for each Common Share so
held (subject to appropriate  adjustments,  as hereinafter set forth). As of and
after the  Distribution  Date, the Rights will be evidenced solely by such Right
Certificates.

         (b) As soon as practicable after the Record Date, the Company will send
a copy of a Summary of Rights to Purchase Preferred Shares, in substantially the
form of Exhibit C hereto (the  "Summary of  Rights"),  by  first-class,  postage
prepaid mail, to each record holder of Common Shares as of the close of business
on the Record  Date,  at the address of such holder  shown on the records of the
Company.  With respect to certificates  for Common Shares  outstanding as of the
Record Date, until the  Distribution  Date, the Rights will be evidenced by such
certificates registered in the names of the holders thereof together with a copy
of the Summary of Rights attached thereto. Until the



                                       -8-

<PAGE>



Distribution Date (or the earlier of the Redemption Date or the Final Expiration
Date),  the  surrender  for  transfer  of  any  certificate  for  Common  Shares
outstanding on the Record Date,  with or without a copy of the Summary of Rights
attached  thereto,  shall also constitute the transfer of the Rights  associated
with the Common Shares represented thereby.

         (c) Certificates for Common Shares which become outstanding (including,
without limitation, reacquired Common Shares referred to in the last sentence of
this  paragraph  (c)) after the  Record  Date but prior to the  earliest  of the
Distribution  Date, the Redemption Date or the Final  Expiration  Date, shall be
deemed also to be certificates for Rights, and shall bear the following legend:

         This  certificate  also  evidences  and entitles  the holder  hereof to
         certain  rights  as set  forth  in a  Rights  Agreement  between  CIDCO
         Incorporated  and United  States Trust  Company of New York,  as Rights
         Agent, dated as of January 27, 1997 (the "Rights Agreement"), the terms
         of which are  hereby  incorporated  herein by  reference  and a copy of
         which  is  on  file  at  the  principal   executive  offices  of  CIDCO
         Incorporated.  Under certain circumstances,  as set forth in the Rights
         Agreement,  such Rights will be evidenced by separate  certificates and
         will no longer be evidenced  by this  certificate.  CIDCO  Incorporated
         will  mail to the  holder  of  this  certificate  a copy of the  Rights
         Agreement without charge after receipt of a written request therefor to
         the Secretary of CIDCO  Incorporated.  Under certain  circumstances set
         forth in the Rights Agreement, Rights issued to, or held by, any Person
         who is, was or becomes an  Acquiring  Person (as  defined in the Rights
         Agreement) and certain related persons, whether currently held by or on
         behalf of such Person or by any  subsequent  holder,  shall become null
         and void.

With respect to such  certificates  containing the foregoing  legend,  until the
Distribution  Date, the Redemption Date or the Final Expiration Date, the Rights
associated  with the Common Shares  represented  by such  certificates  shall be
evidenced by such certificates alone, and the surrender for transfer of any such
certificate shall also constitute the transfer of the Rights associated with the
Common Shares  represented  thereby.  In the event that the Company purchases or
acquires any



                                       -9-

<PAGE>



Common  Shares  after the Record Date but prior to the  Distribution  Date,  any
Rights  associated with such Common Shares shall be deemed cancelled and retired
so that the Company shall not be entitled to exercise any Rights associated with
the Common Shares which are no longer outstanding,  provided,  however,  that if
any Common  Shares  which have been  purchased  or  acquired  by the Company are
reissued  by the  Company,  such Common  Shares  shall be issued with the Rights
associated therewith.

         Section 4. Form of Right Certificates.  (a) The Right Certificates (and
the forms of election  to  purchase  Preferred  Shares and of  assignment  to be
printed on the reverse  thereof)  shall be  substantially  the same as Exhibit B
hereto  and may  have  such  marks of  identification  or  designation  and such
legends,  summaries  or  endorsements  printed  thereon as the  Company may deem
appropriate  and as are not  inconsistent  with the  provisions  of this  Rights
Agreement,  or as may be required to comply with any  applicable law or with any
rule or regulation  made pursuant  thereto or with any rule or regulation of any
stock  exchange  on which  the  Rights  may from time to time be  listed,  or to
conform to usage. Subject to the provisions of Section 11 and Section 22 hereof,
the Right Certificates shall entitle the holders thereof to purchase such number
of one one-thousandths of a Preferred Share as shall be set forth therein at the
price  per one  one-thousandth  of a  Preferred  Share set  forth  therein  (the
"Purchase  Price"),  but the amount and type of securities  purchasable upon the
exercise of each Right and the Purchase  Price shall be subject to adjustment as
provided herein.

         (b) Any Right Certificate issued pursuant to Section 3(a) or Section 22
hereof that  represents  Rights which are null and void pursuant to Section 7(e)
of this Rights Agreement and any Right Certificate  issued pursuant to Section 6
or Section 11 hereof upon transfer, exchange,



                                      -10-

<PAGE>



replacement  or  adjustment of any other Right  Certificate  referred to in this
sentence, shall contain (to the extent feasible) the following legend:

         The  Rights   represented  by  this  Right   Certificate  are  or  were
         beneficially owned by a Person who was or became an Acquiring Person or
         an Affiliate  or  Associate  of an Acquiring  Person (as such terms are
         defined in the Rights Agreement).  Accordingly,  this Right Certificate
         and the Rights represented hereby are null and void.

However,  the  provisions  of Section  7(e) of this  Rights  Agreement  shall be
operative  whether or not the  foregoing  legend is  contained on any such Right
Certificate.

         Section 5.  Execution,  Countersignature  and  Registration.  The Right
Certificates  shall be executed on behalf of the Company by its  Chairman of the
Board,  its President,  any of its Vice  Presidents,  or its  Treasurer,  either
manually or by facsimile  signature,  shall have affixed  thereto the  Company's
seal or a  facsimile  thereof,  and shall be  attested  by the  Secretary  or an
Assistant Secretary of the Company,  either manually or by facsimile  signature.
The Right Certificates  shall be manually  countersigned by the Rights Agent and
shall not be valid for any purpose unless countersigned.  In case any officer of
the Company who shall have signed any of the Right  Certificates  shall cease to
be such officer of the Company before  countersignature  by the Rights Agent and
issuance and delivery by the Company, such Right Certificates, nevertheless, may
be  countersigned  by the Rights  Agent and issued and  delivered by the Company
with the same  force and  effect as though  the  person  who  signed  such Right
Certificates  had not ceased to be such  officer of the  Company;  and any Right
Certificate  may be signed on behalf of the  Company by any person  who,  at the
actual  date of the  execution  of such  Right  Certificate,  shall  be a proper
officer of the Company to sign such Right  Certificate,  although at the date of
the execution of this Rights Agreement any such person was not such an officer.



                                      -11-

<PAGE>



         Following the Distribution Date, the Rights Agent will keep or cause to
be kept, at its principal  office,  books for  registration  and transfer of the
Right  Certificates  issued  hereunder.  Such  books  shall  show the  names and
addresses of the  respective  holders of the Right  Certificates,  the number of
Rights  evidenced on its face by each of the Right  Certificates and the date of
each of the Right Certificates.

         Section  6.  Transfer,  Split Up,  Combination  and  Exchange  of Right
Certificates; Mutilated, Destroyed, Lost or Stolen Right Certificate. Subject to
the provisions of Section 4(b),  Section 7(e) and Section 14 hereof, at any time
after the close of business  on the  Distribution  Date,  and at or prior to the
close of business on the earlier of the Redemption Date or the Final  Expiration
Date, any Right Certificate or Right Certificates (other than Right certificates
representing  Rights that have become  void  pursuant to Section  7(e) hereof or
that have been  exchanged  pursuant  to Section 24 hereof)  may be  transferred,
split  up,  combined  or  exchanged  for  another  Right  Certificate  or  Right
Certificates,  entitling the registered  holder to purchase a like number of one
onethousandths  of a Preferred Share (or,  following a Triggering  Event,  other
securities,  as the case may be) as the Right Certificate or Right  Certificates
surrendered  then  entitled  such  holder  (or  former  holder  in the case of a
transfer) to purchase.  Any registered  holder  desiring to transfer,  split up,
combine or exchange any Right Certificate or Right  Certificates shall make such
request in writing  delivered to the Rights Agent, and shall surrender the Right
Certificate  or Right  Certificates  to be  transferred,  split up,  combined or
exchanged at the  principal  office of the Rights  Agent.  Thereupon  the Rights
Agent  shall,  subject  to Section  4(b),  Section  7(e) and  Section 14 hereof,
countersign  and deliver to the person entitled  thereto a Right  Certificate or
Right Certificates, as the case may be, as so requested. The Company may require
payment of a sum sufficient to cover any tax or



                                      -12-

<PAGE>



governmental  charge that may be imposed in connection with any transfer,  split
up, combination or exchange of Right Certificates.

         Upon receipt by the Company and the Rights Agent of evidence reasonably
satisfactory  to them of the loss,  theft,  destruction or mutilation of a Right
Certificate,  and,  in case of  loss,  theft or  destruction,  of  indemnity  or
security  reasonably  satisfactory  to  them,  and,  at the  Company's  request,
reimbursement  to the Company and the Rights  Agent of all  reasonable  expenses
incidental  thereto,  and upon surrender to the Rights Agent and cancellation of
the Right  Certificate  if  mutilated,  the Company  will make and deliver a new
Right  Certificate  of like  tenor  to the  Rights  Agent  for  delivery  to the
registered holder in lieu of the Right Certificate so lost, stolen, destroyed or
mutilated.

         Section 7.  Exercise  of Rights;  Purchase  Price;  Expiration  Date of
Rights. (a) Subject to Section 7(e) and Section 11(a)(ii) hereof, the registered
holder of any Right  Certificate  may  exercise  the  Rights  evidenced  thereby
(except as otherwise  provided herein) in whole or in part at any time after the
Distribution  Date upon  surrender  of the Right  Certificate,  with the form of
election to purchase on the reverse side thereof  duly  executed,  to the Rights
Agent at the principal office of the Rights Agent,  together with payment of the
aggregate  Purchase  Price for the  total  number  of one  one-thousandths  of a
Preferred  Share  (or  other  securities,  as the case may be) as to which  such
surrendered  Rights are exercised,  at or prior to the earliest of (i) the close
of business on January 27, 2007 (the "Final Expiration Date"),  (ii) the time at
which the Rights are redeemed as provided in Section 23 hereof (the  "Redemption
Date"),  or (iii) the time at which such  Rights are  exchanged  as  provided in
Section 24 hereof.



                                      -13-

<PAGE>



         (b) The Purchase Price for each one one-thousandth of a Preferred Share
pursuant to the exercise of a Right shall initially be $95.00,  shall be subject
to adjustment  from time to time as provided in Sections 11 and 13(a) hereof and
shall be payable in lawful money of the United  States of America in  accordance
with  paragraph  (c) below.  Anything in this Rights  Agreement  to the contrary
notwithstanding,  in the event  that at any time  after the date of this  Rights
Agreement and prior to the  Distribution  Date, the Company shall (i) declare or
pay any dividend on the Common Shares  payable in Common Shares or (ii) effect a
subdivision,   combination   or   consolidation   of  the   Common   Shares  (by
reclassification  or otherwise  than by payment of  dividends in Common  Shares)
into a greater or lesser number of Common  Shares,  then in any such case,  each
Common  Share   outstanding   following   such   subdivision,   combination   or
consolidation  shall  continue  to have a  Right  associated  therewith  and the
Purchase  Price  following any such event shall be  proportionately  adjusted to
equal the result obtained by multiplying the Purchase Price immediately prior to
such event by a fraction  the  numerator  of which shall be the total  number of
Common Shares  outstanding  immediately prior to the occurrence of the event and
the denominator of which shall be the total number of Common Shares  outstanding
immediately  following the occurrence of such event. The adjustment provided for
in the preceding sentence shall be made successively whenever such a dividend is
declared  or  paid  or  such a  subdivision,  combination  or  consolidation  is
effected.

         (c)  Upon  receipt  of a  Right  Certificate  representing  exercisable
Rights,  with the form of election to purchase  duly  executed,  accompanied  by
payment of the Purchase Price for the Preferred Shares (or other securities,  as
the case may be) to be purchased and an amount equal to any applicable  transfer
tax required to be paid by the holder of such Right  Certificate  in  accordance
with Section 9 hereof by certified check, cashier's check or money order payable
to the order of the



                                      -14-

<PAGE>



Company,  the Rights Agent shall thereupon promptly (i) (A) requisition from any
transfer  agent of the  Preferred  Shares  certificates  for the  number  of one
one-thousandths  of a Preferred  Share to be  purchased  and the Company  hereby
irrevocably  authorizes its transfer agent to comply with all such requests, (B)
if the  Company,  in its sole  discretion,  shall have  elected  to deposit  the
Preferred  Shares  issuable  upon  exercise  of  the  Rights  hereunder  into  a
depositary,   requisition  from  the  depositary   agent   depositary   receipts
representing such number of one  one-thousandths  of a Preferred Share as are to
be  purchased  (in  which  case  certificates  for  the one  one-thousandths  of
Preferred Shares represented by such receipts shall be deposited by the transfer
agent with the  depositary  agent) and the Company  will  direct the  depositary
agent to comply with such requests, (ii) when appropriate,  requisition from the
Company the amount of cash to be paid in lieu of issuance of  fractional  shares
in accordance with Section 14 hereof,  (iii) after receipt of such certificates,
cause the same to be delivered to or upon the order of the registered  holder of
such Right Certificate, registered in such name or names as may be designated by
such holder, and (iv) when appropriate,  after receipt,  deliver such cash to or
upon the order of the registered holder of such Right Certificate.  In the event
that the  Company is  obligated  to issue  other  securities  (including  Common
Shares) of the Company  pursuant to Section 11(a) hereof,  the Company will make
all  arrangements  necessary so that such other  securities  are  available  for
distribution by the Rights Agent, if and when appropriate.

         In  addition,  in the case of an  exercise  of the  Rights  by a holder
pursuant  to  Section  11(a)(ii),  the  Rights  Agent  shall  return  such Right
Certificate  to the  registered  holder  thereof after  imprinting,  stamping or
otherwise   indicating  thereon  that  the  rights  represented  by  such  Right
Certificate  no longer include the rights  provided by Section  11(a)(ii) of the
Rights Agreement and if less than all



                                      -15-

<PAGE>



the Rights  represented by such Right Certificate were so exercised,  the Rights
Agent shall indicate on the Right  Certificate the number of Rights  represented
thereby which continue to include the rights provided by Section 11(a)(ii).

         (d) In case  the  registered  holder  of any  Right  Certificate  shall
exercise less than all the Rights  evidenced  thereby,  a new Right  Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the Rights Agent to the registered holder of such Right Certificate or to his
duly authorized assigns,  subject to the provisions of Section 14 hereof, or the
Rights Agent shall place an appropriate  notation on the Rights Certificate with
respect to those Rights exercised.

         (e) Notwithstanding  anything in this Rights Agreement to the contrary,
from and after the first  occurrence of a Section  11(a)(ii)  Event,  any Rights
beneficially owned by (i) an Acquiring Person or an Affiliate or Associate of an
Acquiring Person,  (ii) a transferee of an Acquiring Person (or of any Affiliate
or  Associate  thereof)  who becomes a  transferee  after the  Acquiring  Person
becomes such, or (iii) a transferee of an Acquiring  Person (or of any Affiliate
or Associate thereof) who becomes a transferee prior to or concurrently with the
Acquiring Person becoming such and receives such Rights pursuant to either (A) a
transfer (whether or not for consideration) from the Acquiring Person to holders
of equity  interests  in such  Acquiring  Person or to any Person  with whom the
Acquiring  Person  has a  continuing  agreement,  arrangement  or  understanding
regarding the transferred  Rights or (B) a transfer which the Board of Directors
of the Company has determined is part of a plan,  arrangement  or  understanding
which has as a primary  purpose or effect the  avoidance of this  Section  7(e),
shall  become null and void  without  any  further  action and no holder of such
Rights shall have any rights  whatsoever  with  respect to such Rights,  whether
under any



                                      -16-

<PAGE>



provision of this Rights Agreement or otherwise.  No Right  Certificate shall be
issued pursuant to Section 3 that  represents  Rights  beneficially  owned by an
Acquiring Person whose Rights would be void pursuant to the preceding  sentence,
or any Associate or Affiliate  thereof;  no Right Certificate shall be issued at
any time upon the  transfer of any Rights to an  Acquiring  Person  whose Rights
would be void pursuant to the  preceding  sentence or any Associate or Affiliate
thereof or to any nominee of such Acquiring Person,  Associate or Affiliate; and
any Right Certificate delivered to the Rights Agent for transfer to an Acquiring
Person  whose  Rights would be void  pursuant to the  preceding  sentence or any
Associate or Affiliate  thereof  shall be  cancelled.  The Company shall use all
reasonable  efforts  to insure  that the  provisions  of this  Section  7(e) and
Section  4(b) hereof are  complied  with,  but the Company and the Rights  Agent
shall have no liability to any holder of Right Certificates or other Person as a
result of its failure to make any  determinations  with  respect to an Acquiring
Person or its Affiliates, Associates or transferees hereunder.

         (f) Notwithstanding  anything in this Rights Agreement to the contrary,
neither the Rights Agent nor the Company  shall be  obligated  to undertake  any
action with respect to a registered  holder upon the occurrence of any purported
exercise as set forth in this Section 7 unless such registered holder shall have
(i)  completed and signed the  certificate  contained in the form of election to
purchase set forth on the reverse side of the Right Certificate  surrendered for
such exercise, and (ii) provided such additional evidence of the identity of the
Beneficial  Owner (or  former  Beneficial  Owner) or  Affiliates  or  Associates
thereof as the Company shall reasonably request.

         Section 8.  Cancellation  and  Destruction of Right  Certificates.  All
Right Certificates surrendered for the purpose of exercise,  transfer, split up,
combination  or exchange  shall,  if surrendered to the Company or to any of its
agents, be delivered to the Rights Agent for cancellation



                                      -17-

<PAGE>



or in cancelled form, or, if surrendered to the Rights Agent, shall be cancelled
by it,  and no Right  Certificates  shall be  issued in lieu  thereof  except as
expressly  permitted  by any of the  provisions  of this Rights  Agreement.  The
Company shall deliver to the Rights Agent for cancellation  and retirement,  and
the  Rights  Agent  shall so cancel  and  retire,  any other  Right  Certificate
purchased or acquired by the Company  otherwise than upon the exercise  thereof.
The Rights Agent shall deliver all cancelled Right  Certificates to the Company,
or shall,  at the written  request of the Company,  destroy such cancelled Right
Certificates,  and in such case  shall  deliver  a  certificate  of  destruction
thereof to the Company.

         Section 9.  Reservation  and  Availability  of  Preferred  Shares.  The
Company  covenants  and agrees  that at all times prior to the  occurrence  of a
Section  11(a)(ii)  Event it will cause to be reserved and kept available out of
its  authorized  and unissued  Preferred  Shares,  or any  authorized and issued
Preferred Shares held in its treasury,  the number of Preferred Shares that will
be  sufficient  to permit the  exercise in full of all  outstanding  Rights and,
after  the  occurrence  of a  Section  11(a)(ii)  Event,  shall,  to the  extent
reasonably  practicable,  so reserve and keep  available a sufficient  number of
Common  Shares  (and/or  other  securities)  which may be required to permit the
exercise in full of the Rights pursuant to this Agreement.

         So long as the Preferred Shares (and, after the occurrence of a Section
11(a)(ii)  Event,  Common  Shares or any  other  securities)  issuable  upon the
exercise of the Rights may be listed on any national  securities  exchange,  the
Company  shall use its best  efforts  to cause,  from and after such time as the
Rights become exercisable, all shares reserved for such issuance to be listed on
such exchange upon official notice of issuance upon such exercise.



                                      -18-

<PAGE>



         The Company  covenants  and agrees that it will take all such action as
may be necessary to ensure that all  Preferred  Shares (or Common  Shares and/or
other  securities,  as the case may be) delivered upon exercise of Rights shall,
at the time of delivery of the  certificates for such Preferred  Shares,  Common
Shares and/or other securities  (subject to payment of the Purchase  Price),  be
duly and validly authorized and issued and fully paid and non-assessable  shares
or securities.

         The Company further  covenants and agrees that it will pay when due and
payable any and all federal and state  transfer  taxes and charges  which may be
payable in respect of the issuance or delivery of the Right  Certificates  or of
any one  one-thousandths  of a Preferred  Share (or Common  Shares  and/or other
securities,  as the case may be) upon the exercise of Rights.  The Company shall
not,  however,  be  required  to pay any  transfer  tax which may be  payable in
respect of any  transfer  or delivery of Right  Certificates  to a person  other
than, or the issuance or delivery of certificates or depository receipts for the
Preferred Shares (or Common Shares and/or other securities,  as the case may be)
in a name  other than that of, the  registered  holder of the Right  Certificate
evidencing  Rights  surrendered  for  exercise  or to  issue or to  deliver  any
certificates or depository  receipts for the Preferred  Shares (or Common Shares
and/ or other  securities,  as the case may be) upon the  exercise of any Rights
until any such tax shall  have  been  paid  (any such tax being  payable  by the
holder of such Right  Certificate at the time of surrender) or until it has been
established to the Company's reasonable satisfaction that no such tax is due.

         The  Company  shall  use  its  best  efforts  to (i)  file,  as soon as
practicable following the Distribution Date, a registration  statement under the
Act, with respect to the securities  purchasable  upon exercise of the Rights on
an appropriate form, (ii) cause such registration  statement to become effective
as soon as  practicable  after such  filing,  and (iii) cause such  registration
statement to remain



                                      -19-

<PAGE>



effective  (with a prospectus at all times meeting the  requirements  of the Act
and the rules and  regulations  thereunder)  until the date of the expiration of
the rights provided by Section 11(a)(ii). The Company will also take such action
as may be appropriate under the blue sky laws of the various states.

         Section 10. Preferred Shares Record Date. Each person in whose name any
certificate for Preferred Shares (or Common Shares and/or other  securities,  as
the case may be) is issued upon the exercise of Rights shall for all purposes be
deemed to have  become  the  holder of record of the  Preferred  Shares  (or the
Common Shares and/or other securities,  as the case may be) represented  thereby
on,  and  such  certificate  shall  be  dated  the date  upon  which  the  Right
Certificate  evidencing  such  Rights was duly  surrendered  and  payment of the
Purchase Price (and any applicable transfer taxes) was made; provided,  however,
that if the  date  of such  surrender  and  payment  is a date  upon  which  the
Preferred Shares (or the Common Shares and/or other securities,  as the case may
be)  transfer  books of the Company are closed,  such person  shall be deemed to
have become the record holder of such shares on, and such  certificate  shall be
dated,  the next succeeding  Business Day on which the Preferred  Shares (or the
Common Shares and/or other securities, as the case may be) transfer books of the
Company are open.  Prior to the exercise of the Rights  evidenced  thereby,  the
holder of a Right Certificate shall not be entitled to any rights of a holder of
Preferred  Shares (or Common Shares and/or  securities,  as the case may be) for
which the Rights shall be exercisable,  including, without limitation, the right
to  vote,  to  receive  dividends  or other  distributions  or to  exercise  any
preemptive  rights,  and shall not be  entitled  to  receive  any  notice of any
proceedings of the Company, except as provided herein.



                                      -20-

<PAGE>



         Section 11. Adjustment of Purchase Price, Number of Shares or Number of
Rights.  The Purchase Price, the number and kind of shares covered by each Right
and the number of Rights outstanding are subject to adjustment from time to time
as provided in this Section 11.

         (a) (i) In the event the  Company  shall at any time  after the date of
         this Rights  Agreement (A) declare a dividend on the  Preferred  Shares
         payable in Preferred  Shares,  (B) subdivide the outstanding  Preferred
         Shares,  (C) combine the  outstanding  Preferred  Shares into a smaller
         number of Preferred Shares or (D) issue any shares of its capital stock
         in a  reclassification  of the  Preferred  Shares  (including  any such
         reclassification  in connection with a consolidation or merger in which
         the Company is the  continuing  or  surviving  corporation),  except as
         otherwise  provided in this Section 11(a) and Section 7(e) hereof,  the
         Purchase  Price  in  effect  at the  time of the  record  date for such
         dividend or of the effective date of such  subdivision,  combination or
         reclassification,  and the number  and kind of shares of capital  stock
         issuable on such date,  shall be  proportionately  adjusted so that the
         holder of any Right  exercised  after  such time shall be  entitled  to
         receive the aggregate number and kind of shares of capital stock which,
         if such Right had been exercised  immediately prior to such date and at
         a time when the  Preferred  Shares  transfer  books of the Company were
         open, such holder would have owned upon such exercise and been entitled
         to  receive by virtue of such  dividend,  subdivision,  combination  or
         reclassification;  provided,  however,  that  in  no  event  shall  the
         consideration  to be paid upon the  exercise  of one Right be less than
         the  aggregate  par value of the shares of capital stock of the Company
         issuable  upon  exercise of one Right.  If an event  occurs which would
         require an adjustment under both Section 11(a)(i)



                                      -21-

<PAGE>



         and Section  11(a)(ii),  the  adjustment  provided  for in this Section
         11(a)(i)  shall be in  addition  to,  and shall be made  prior to,  any
         adjustment required pursuant to Section 11(a)(ii).

                  (ii) In the  event  any  Person,  alone or  together  with its
         Affiliates and Associates, shall become an Acquiring Person (such event
         being herein referred to as a "Triggering Event"),  then each holder of
         a Right (except as provided  below and in Section 7(e) hereof) shall at
         any time  after  the  later to  occur of the  Distribution  Date or the
         effective date of an appropriate  registration  statement under the Act
         pursuant to Section 9 hereof,  have a right to receive,  upon  exercise
         thereof  at a price  equal  to the  then  current  Purchase  Price,  in
         accordance with the terms of this Rights Agreement,  such number of one
         one-thousandths of a Preferred Share as shall equal the result obtained
         by multiplying the Purchase Price by the number of one  one-thousandths
         of a  Preferred  Share for which a Right  was  exercisable  immediately
         prior  to the  first  occurrence  of a  Section  11(a)(ii)  Event,  and
         dividing that product by 50% of the then current per share market price
         of the Company's  Common Shares  (determined  pursuant to Section 11(d)
         hereof) on the date of the  occurrence of such  Triggering  Event (such
         number  of  shares  being  referred  to as  the  "Adjustment  Shares");
         provided,  however,  that if the transaction  that would otherwise give
         rise to the foregoing  adjustment is also subject to the  provisions of
         Section 13 hereof,  then only the provisions of Section 13 hereof shall
         apply  and no  adjustment  shall  be  made  pursuant  to  this  Section
         11(a)(ii).

                  (iii) In the event that there shall not be sufficient treasury
         shares or authorized but unissued (and unreserved)  Preferred Shares to
         permit  the  exercise  in full of the  Rights  in  accordance  with the
         foregoing subparagraph (ii) and the Rights become so exercisable,



                                      -22-

<PAGE>



         notwithstanding  any other provision of this Rights  Agreement,  to the
         extent  necessary  and  permitted by  applicable  law, each Right shall
         thereafter represent the right to receive, upon exercise thereof at the
         Purchase Price in accordance  with the terms of this Rights  Agreement,
         (x) a number of (or  fractions  of) Common  Shares  (up to the  maximum
         number of Common Shares which may  permissibly  be issued) and/or (y) a
         number of (or fractions of) other equity  securities of the Company (or
         in the discretion of the Board of Directors,  debt) including,  but not
         limited  to,  fractions  of a  Preferred  Share,  which  the  Board  of
         Directors  of the Company  has  determined  to have the same  aggregate
         current market value (determined  pursuant to Section 11(d)(i) and (ii)
         hereof, to the extent applicable,) as one one-thousandth of a Preferred
         Share (such number of, or fractions  of,  equity  securities or debt of
         the Company) being referred to as a "capital stock equivalent"),  equal
         in the aggregate to the number of Adjustment Shares; provided, however,
         if there are unavailable  sufficient Preferred Shares, Common Shares or
         capital  stock  equivalents,  then the  Company  shall,  to the  extent
         permitted by  applicable  law, take all such action as may be necessary
         to authorize  additional  Preferred  Shares,  Common  Shares or capital
         stock  equivalents for issuance upon exercise of the Rights,  including
         the calling of a meeting of stockholders;  and provided,  further, that
         if the Company is unable to cause sufficient  Preferred Shares,  Common
         Shares and/or  capital stock  equivalents  to be available for issuance
         upon exercise in full of the Rights,  then each Right shall  thereafter
         represent  the right to  receive  the  Adjusted  Number of Shares  upon
         exercise at the Adjusted  Purchase Price (as such terms are hereinafter
         defined). As used herein, the term "Adjusted Number of Shares" shall be
         equal to that number of (or  fractions  of)  Preferred  Shares  (and/or
         capital stock equivalents) equal to the



                                      -23-

<PAGE>



         product of (x) the number of Adjustment Shares and (y) a fraction,  the
         numerator of which is the number of Preferred  Shares  (and/or  capital
         stock  equivalents)  available for issuance upon exercise of the Rights
         and the  denominator  of which is the  aggregate  number of  Adjustment
         Shares otherwise issuable upon exercise in full of all Rights (assuming
         there were a sufficient  number of Preferred  Shares  available)  (such
         fraction being referred to as the  "Proration  Factor").  The "Adjusted
         Purchase  Price" shall mean the product of the  Purchase  Price and the
         Proration Factor. The Board of Directors may, but shall not be required
         to,  establish  procedures  to allocate the right to receive  Preferred
         Shares and capital stock  equivalents upon exercise of the Rights among
         holders of Rights.

         (b) In case the  Company  shall fix a record  date for the  issuance of
rights (other than the Rights),  options or warrants to all holders of Preferred
Shares  entitling them (for a period expiring within 45 calendar days after such
record date) to subscribe for or purchase Preferred Shares (or shares having the
same rights,  privileges and  preferences as the Preferred  Shares  ("equivalent
preferred shares") or securities convertible into Preferred Shares or equivalent
preferred  shares at a price per Preferred  Share or equivalent  preferred share
(or  having a  conversion  price  per  share,  if a  security  convertible  into
Preferred  Shares or equivalent  preferred share) less than the then current per
share market price of the Preferred  Shares (as defined in Section 11(d) hereof)
on such record date,  the Purchase  Price to be in effect after such record date
shall be  determined by  multiplying  the Purchase  Price in effect  immediately
prior to such  record date by a fraction,  the  numerator  of which shall be the
number of Preferred  Shares  outstanding  on such record date plus the number of
Preferred  Shares  which the  aggregate  offering  price of the total  number of
Preferred Shares and/or equivalent preferred shares so to be offered (and/or the
aggregate initial conversion price of the



                                      -24-

<PAGE>



convertible  securities so to be offered)  would purchase at such current market
price and the  denominator  of which  shall be the  number of  Preferred  Shares
outstanding on such record date plus the number of additional  Preferred  Shares
and/or  equivalent  preferred  shares to be offered for subscription or purchase
(or into  which  the  convertible  securities  so to be  offered  are  initially
convertible);  provided, however, that in no event shall the consideration to be
paid upon the exercise of one Right be less than the  aggregate par value of the
shares of capital stock of the Company  issuable upon exercise of one Right.  In
case such subscription price may be paid in a consideration part or all of which
shall be in a form other than cash, the value of such consideration  shall be as
determined  in good  faith  by the  Board of  Directors  of the  Company,  whose
determination  shall be described in a statement filed with the Rights Agent and
shall be binding on the Rights Agent.  Preferred Shares owned by or held for the
account of the Company  shall not be deemed  outstanding  for the purpose of any
such  computation.  Such adjustment shall be made  successively  whenever such a
record date is fixed; and in the event that such rights, options or warrants are
not so issued,  the Purchase  Price shall be adjusted to be the  Purchase  Price
which would then be in effect if such record date had not been fixed.

         (c) In case the  Company  shall fix a record  date for the  making of a
distribution  to all  holders  of  the  Preferred  Shares  (including  any  such
distribution  made in  connection  with a  consolidation  or merger in which the
Company is the continuing or surviving corporation) of evidences of indebtedness
or assets (other than a regular cash dividend or a dividend payable in Preferred
Shares) or  subscription  rights or  warrants  (excluding  those  referred to in
Section 11(b) hereof), the Purchase Price to be in effect after such record date
shall be  determined by  multiplying  the Purchase  Price in effect  immediately
prior to such record date by a fraction, the numerator of



                                      -25-

<PAGE>



which shall be the then  current per share  market  price (as defined in Section
11(d) hereof) of the Preferred  Shares on such record date, less the fair market
value (as  determined  in good faith by the Board of  Directors  of the Company,
whose  determination  shall be  described  in a statement  filed with the Rights
Agent and shall be binding on the Rights  Agent) of the portion of the assets or
evidences of indebtedness so to be distributed or of such subscription rights or
warrants applicable to one Preferred Share and the denominator of which shall be
such current per share market price of the Preferred Shares; provided,  however,
that in no event  shall the  consideration  to be paid upon the  exercise of one
Right be less than the aggregate par value of the shares of capital stock of the
Company to be issued upon exercise of one Right.  Such adjustments shall be made
successively  whenever  such a record date is fixed;  and in the event that such
distribution  is not so made,  the Purchase  Price shall again be adjusted to be
the  Purchase  Price  which  would then be in effect if such record date had not
been fixed.

         (d) (i) For the purpose of any computation hereunder,  the "current per
         share market  price" of any security (a  "Security"  for the purpose of
         this Section 11(d)(i)) on any date shall be deemed to be the average of
         the  daily  closing  prices  per  share  of  such  Security  for the 30
         consecutive  Trading  Days  (as  such  term  is  hereinafter   defined)
         immediately prior to such date;  provided,  however,  that in the event
         that the current per share market  price of the Security is  determined
         during  a period  following  the  announcement  by the  issuer  of such
         Security of (A) a dividend or distribution on such Security  payable in
         shares of such Security or securities  convertible into such shares, or
         (B) any subdivision,  combination or  reclassification of such Security
         and prior to the  expiration  of 30 Trading Days after the  ex-dividend
         date for such  dividend  or  distribution,  or the record date for such
         subdivision,



                                      -26-

<PAGE>



         combination  or  reclassification,  then,  and in each such  case,  the
         current  per share  market  price  shall be  appropriately  adjusted to
         reflect the current market price per share equivalent of such Security.
         The closing  price for each day shall be the last sale  price,  regular
         way,  or, in case no such sale takes place on such day,  the average of
         the  closing  bid and asked  prices,  regular  way,  in either  case as
         reported in the principal  consolidated  transaction  reporting  system
         with  respect to  securities  listed or  admitted to trading on the New
         York Stock  Exchange  or, if the  Security is not listed or admitted to
         trading on the New York Stock  Exchange,  as reported in the  principal
         consolidated  transaction  reporting  system with respect to securities
         listed  on the  principal  national  securities  exchange  on which the
         Security is listed or  admitted  to trading or, if the  Security is not
         listed or admitted to trading on any national securities exchange,  the
         last quoted price or, if not so quoted, the average of the high bid and
         low asked  prices in the  over-the-counter  market,  as reported by the
         National  Association of Securities Dealers,  Inc. Automated Quotations
         System  ("NASDAQ") or such other system then in use, or, if on any such
         date the Security is not quoted by any such  organization,  the average
         of the  closing bid and asked  prices as  furnished  by a  professional
         market maker  making a market in the Security  selected by the Board of
         Directors of the Company.  The term  "Trading  Day" shall mean a day on
         which the principal national  securities exchange on which the Security
         is  listed  or  admitted  to  trading  is open for the  transaction  of
         business  or, if the  Security  is not listed or admitted to trading on
         any national securities exchange, a Business Day.

                  (ii)  For  the  purpose  of  any  computation  hereunder,  the
         "current  per share  market  price" of the  Preferred  Shares  shall be
         determined in accordance with the method set forth



                                      -27-

<PAGE>



         in Section  11(d)(i).  If the Preferred Shares are not publicly traded,
         the "current per share market price" of the  Preferred  Shares shall be
         conclusively  deemed to be the  current per share  market  price of the
         Common Shares as determined pursuant to Section 11(d)(i), appropriately
         adjusted  to  reflect  any  stock  split,  stock  dividend  or  similar
         transaction  occurring  after  the  date  hereof,   multiplied  by  one
         thousand.  If neither the Common nor the Preferred  Shares are publicly
         held or so listed or traded, the "current per share market price" shall
         mean the fair value per share as  determined in good faith by the Board
         of Directors of the Company,  whose determination shall be described in
         a  statement  filed with the  Rights  Agent and shall be binding on the
         Rights Agent.

         (e) No adjustment in the Purchase  Price shall be required  unless such
adjustment  would require an increase or decrease of at least 1% in the Purchase
Price;  provided,  however, that any adjustments which by reason of this Section
11(e) are not  required  to be made  shall be  carried  forward  and taken  into
account in any subsequent  adjustment.  All  calculations  under this Section 11
shall be made to the  nearest  cent or to the nearest  one  one-thousandth  of a
Preferred Share or to the nearest one one-thousandth of a share or security,  as
the case may be.  Notwithstanding  the first sentence of this Section 11(e), any
adjustment  required by this  Section 11 shall be made no later than the earlier
of (i)  three  years  from  the  date of the  transaction  which  requires  such
adjustment or (ii) the Final Expiration Date.

         (f) If as a result of an  adjustment  made pursuant to Section 11(a) or
Section 13(a) hereof, the holder of any Right thereafter  exercised shall become
entitled  to  receive  any  shares of capital  stock of the  Company  other than
Preferred Shares,  thereafter the number of such other shares so receivable upon
exercise  of any Right  shall be  subject to  adjustment  from time to time in a
manner



                                      -28-

<PAGE>



and on terms as nearly  equivalent as practicable to the provisions with respect
to the Preferred Shares contained in Sections 11(a) through (c), inclusive,  and
the  provisions  of  Sections  7, 9, 10, 13 and 14 hereof  with  respect  to the
Preferred Shares shall apply on like terms to any such other shares.

         (g) All  Rights  originally  issued by the  Company  subsequent  to any
adjustment  made to the Purchase  Price  hereunder  shall  evidence the right to
purchase, at the adjusted Purchase Price, the number of one one-thousandths of a
Preferred  Share  purchasable  from time to time  hereunder upon exercise of the
Rights, all subject to further adjustment as provided herein.

         (h) Unless the Company shall have exercised its election as provided in
Section 11 (i), upon each  adjustment  of the Purchase  Price as a result of the
calculations made in sections 11(b) and (c), each Right outstanding  immediately
prior to the making of such adjustment  shall  thereafter  evidence the right to
purchase,  at the adjusted Purchase Price, that number of one one-thousandths of
a Preferred Share  (calculated to the nearest one  one-thousandth of a Preferred
Share) obtained by (i) multiplying  (x) the number of one  one-thousandths  of a
Preferred Share covered by a Right  immediately  prior to this adjustment by (y)
the  Purchase  Price  in  effect  immediately  prior to such  adjustment  of the
Purchase  Price and (ii) dividing the product so obtained by the Purchase  Price
in effect immediately after such adjustment of the Purchase Price.

         (i) The Company may elect on or after the date of any adjustment of the
Purchase Price to adjust the number of Rights,  in lieu of any adjustment in the
number of one one-thousandths of a Preferred Share purchasable upon the exercise
of a Right.  Each of the Rights  outstanding after such adjustment of the number
of  Rights  shall be  exercisable  for the  number of one  one-thousandths  of a
Preferred  Share  for which a Right was  exercisable  immediately  prior to such
adjustment. Each



                                      -29-

<PAGE>



Right held of record  prior to such  adjustment  of the  number of Rights  shall
become that  number of Rights  (calculated  to the  nearest one  one-thousandth)
obtained  by  dividing  the  Purchase  Price  in  effect  immediately  prior  to
adjustment  of the Purchase  Price by the Purchase  Price in effect  immediately
after  adjustment  of the  Purchase  Price.  The  Company  shall  make a  public
announcement  of its  election  to adjust the number of Rights,  indicating  the
record date for the  adjustment,  and,  if known at the time,  the amount of the
adjustment  to be made.  This record date may be the date on which the  Purchase
Price is adjusted or any day  thereafter,  but, if the Right  Certificates  have
been  issued,  shall  be at  least 10 days  later  than  the date of the  public
announcement.  If Right  Certificates have been issued,  upon each adjustment of
the number of Rights  pursuant to this  Section 11 (i),  the Company  shall,  as
promptly as  practicable,  cause to be distributed to holders of record of Right
Certificates  on such  record  date Right  Certificates  evidencing,  subject to
Section 14 hereof, the additional Rights to which such holders shall be entitled
as a result of such adjustment, or, at the option of the Company, shall cause to
be distributed to such holders of record in substitution and replacement for the
Right  Certificates  held by such holders prior to the date of  adjustment,  and
upon  surrender  thereof,  if required by the  Company,  new Right  Certificates
evidencing  all the Rights to which such  holders  shall be entitled  after such
adjustment.  Right  Certificates so to be distributed shall be issued,  executed
and  countersigned  in the manner provided for herein and shall be registered in
the names of the  holders of record of Right  Certificates  on the  record  date
specified in the public announcement.

         (j)  Irrespective  of any adjustment or change in the Purchase Price or
the number of one one-thousandth of a Preferred Share issuable upon the exercise
of the Rights,  the Right  Certificates  theretofore  and thereafter  issued may
continue to express the Purchase Price and the number of one



                                      -30-

<PAGE>



one-thousandths  of a Preferred  Share which were expressed in the initial Right
Certificates issued hereunder.

         (k) Before  taking any action that would cause an  adjustment  reducing
the Purchase Price below the then par value, if any, of one one-thousandths of a
Preferred Share, the Common Shares or other securities issuable upon exercise of
the  Rights,  the  Company  shall take any  corporate  action  which may, in the
opinion of its  counsel,  be necessary in order that the Company may validly and
legally issue fully paid and  nonassessable one  one-thousandths  of a Preferred
Share, the Common Shares or other securities at such adjusted Purchase Price.

         (1) In any  case  in  which  this  Section  11  shall  require  that an
adjustment  in the  Purchase  Price be made  effective as of a record date for a
specified  event,  the Company may elect to defer until the  occurrence  of such
event the issuing to the holder of any Right exercised after such record date of
the Preferred Shares,  the Common Shares or other capital stock or securities of
the Company,  if any,  issuable  upon such exercise over and above the Preferred
Shares,  Common Shares or other  capital stock or securities of the Company,  if
any,  issuable upon such  exercise on the basis of the Purchase  Price in effect
prior to such adjustment;  provided,  however, that the Company shall deliver to
such holder a due bill or other appropriate  instrument evidencing such holder's
right to receive such additional shares or securities upon the occurrence of the
event requiring such adjustment.

         (m) Anything in this Section 11 to the  contrary  notwithstanding,  the
Company  shall be entitled to make such  reductions  in the Purchase  Price,  in
addition to those adjustments  expressly  required by this Section 11, as and to
the extent that it in its sole  discretion  shall  determine  to be advisable in
order that (i) any  consolidation or subdivision of the Preferred  Shares,  (ii)
issuance wholly for cash of any Preferred Shares at less than the current market
price, (iii) issuance wholly



                                      -31-

<PAGE>



for cash of Preferred  Shares or securities which by their terms are convertible
into or exchangeable for Preferred Shares,  (iv) stock dividends or (v) issuance
of rights,  options or warrants referred to hereinabove in Section 11, hereafter
made by the Company to holders of its  Preferred  Shares shall not be taxable to
such shareholders.

         (n) The  Company  covenants  and agrees  that it shall not, at any time
after the Distribution Date, (i) consolidate with any other Person (other than a
Subsidiary of the Company in a transaction  which does not violate Section 11(o)
hereof),  (ii) merge with or into any other Person  (other than a Subsidiary  of
the Company in a transaction  which does not violate  Section 11(o) hereof),  or
(iii) sell or transfer (or permit any  Subsidiary to sell or  transfer),  in one
transaction,  or a series  of  related  transactions,  assets or  earning  power
aggregating  more than 50% of the assets or earning power of the Company and its
Subsidiaries  (taken as a whole) to any other Person or Persons  (other than the
Company and/or any of its Subsidiaries in one or more transactions each of which
does not violate  Section 11(o)  hereof),  if (x) at the time of or  immediately
after such  consolidation,  merger,  sale or  transfer  there are any charter or
by-law  provisions or any rights,  warrants or other  instruments  or securities
outstanding  or  agreements  in  effect  or other  actions  taken,  which  would
materially  diminish or otherwise eliminate the benefits intended to be afforded
by the Rights or (y) prior to,  simultaneously  with or  immediately  after such
consolidation,  merger or sale, the  stockholders of the Person who constitutes,
or would constitute,  the "Principal Party" for purposes of Section 13(a) hereof
shall have received a distribution of Rights  previously owned by such Person or
any of its Affiliates and Associates.  The Company shall not consummate any such
consolidation,  merger,  sale or transfer  unless prior  thereto the Company and
such other Person shall have executed and



                                      -32-

<PAGE>



delivered to the  Rights  Agent a supplemental  agreement  evidencing compliance
with this Section 11(n)

         (o) The Company covenants and agrees that, after the Distribution Date,
it will not,  except as permitted  by Section 23 or Section 27 hereof,  take (or
permit any  Subsidiary  to take) any action the purpose of which is to, or if at
the time such action is taken it is  reasonably  foreseeable  that the effect of
such action is to,  materially  diminish or  otherwise  eliminate  the  benefits
intended to be afforded by the Rights.

         (p) The exercise of Rights under Section 11(a)(ii) shall only result in
the loss of rights under Section  11(a)(ii) to the extent so exercised and shall
not  otherwise  affect the rights  represented  by the Rights  under this Rights
Agreement, including the rights represented by Section 13.

         Section 12. Certificate of Adjusted Purchase Price or Number of Shares.
Whenever an  adjustment  is made as  provided in Sections 11 and 13 hereof,  the
Company shall promptly (a) prepare a certificate  setting forth such adjustment,
and a brief statement of the facts accounting for such adjustment, (b) file with
the Rights  Agent and with each  transfer  agent for the  Common  Shares and the
Preferred Shares a copy of such certificate and (c) mail a brief summary thereof
to each holder of a Right Certificate in accordance with Section 26 hereof.  The
Rights Agent shall be fully protected in relying on any such  certificate and on
any  adjustment  therein  contained and shall not be deemed to have knowledge of
such adjustment unless and until it shall have received such certificate.

         Section 13. Consolidation, Merger or Sale or Transfer of Assets or
Earning Power.

         (a) In the event that following the Shares  Acquisition Date,  directly
or indirectly,  (x) the Company shall  consolidate with, or merge with and into,
any other Person, (y) any Person shall



                                      -33-

<PAGE>



consolidate with the Company, or merge with and into the Company and the Company
shall  be the  continuing  or  surviving  corporation  of such  merger  and,  in
connection  with such merger,  all or part of the Common Shares shall be changed
into or  exchanged  for stock or other  securities  of any other  Person (or the
Company)  or cash  or any  other  property,  or (z) the  Company  shall  sell or
otherwise  transfer (or one or more of its Subsidiaries  shall sell or otherwise
transfer), in one or more transactions,  assets or earning power aggregating 50%
or more of the  assets or  earning  power of the  Company  and its  Subsidiaries
(taken as a whole) to any other  Person other than the Company or one or more of
its wholly owned Subsidiaries, then, and in each such case, (i) each holder of a
Right (except as otherwise  provided  herein) shall thereafter have the right to
receive, upon the exercise thereof at a price equal to the then current Purchase
Price multiplied by the number of one  one-thousandths  of a Preferred Share for
which a Right is then  exercisable,  in accordance with the terms of this Rights
Agreement  and in lieu of  Preferred  Shares,  such  number of freely  tradeable
Common Shares of the Principal Party (including the Company as successor thereto
or as the surviving corporation), not subject to any liens, encumbrances, rights
of  first  refusal  or other  adverse  claims,  as shall be equal to the  result
obtained by  multiplying  the then current  Purchase  Price by the number of one
thousandths  of a  Preferred  Share  for which a Right is then  exercisable  and
dividing  that  product by 50% of the then current per share market price of the
Common  Shares of such  Principal  Party  (determined  pursuant to Section 11(d)
hereof)  on the date of  consummation  of such  consolidation,  merger,  sale or
transfer;  (ii) such Principal  Party shall  thereafter be liable for, and shall
assume,  by virtue of such  consolidation,  merger,  sale or  transfer,  all the
obligations and duties of the Company pursuant to this Rights  Agreement;  (iii)
the term "Company" shall  thereafter be deemed to refer to such Principal Party;
and (iv) such Principal Party shall take such steps



                                      -34-

<PAGE>



(including,  but not limited to, the  reservation of a sufficient  number of its
Common  Shares in  accordance  with  Section 9 hereof) in  connection  with such
consummation  as may be  necessary  to assure that the  provisions  hereof shall
thereafter be  applicable,  as nearly as  reasonably  may be, in relation to the
Common  Shares  thereafter  deliverable  upon the  exercise of the  Rights.  The
Company shall not consummate any such  consolidation,  merger,  sale or transfer
unless prior  thereto the Company and such  Principal  Party shall have executed
and delivered to the Rights Agent a  supplemental  agreement so  providing.  The
Company  shall not enter into any  transaction  of the kind  referred to in this
Section 13 if at the time of such  transaction  there are any rights,  warrants,
instruments or securities  outstanding or any agreements or arrangements  which,
as a  result  of the  consummation  of  such  transaction,  would  eliminate  or
substantially  diminish the benefits intended to be afforded by the Rights.  The
provisions of this Section 13 shall  similarly  apply to  successive  mergers or
consolidations or sales or other transfers.

         (b)  "Principal  Party"  shall mean (i) in the case of any  transaction
described  in clause  (x) or (y) of the first  sentence  of Section  13(a),  the
Person  that is the issuer of any  securities  into which  Common  Shares of the
Company are converted in such merger or consolidation,  and if no securities are
so issued,  the Person that is the other  party to such merger or  consolidation
(including, if applicable, the Company if it is the surviving corporation);  and
(ii)  in the  case of any  transaction  described  in  clause  (z) of the  first
sentence of Section 13 (a), the Person that is the party  receiving the greatest
portion of the assets or earning power transferred  pursuant to such transaction
or transactions;  provided,  however, that in any of the foregoing cases, (1) if
the  Common  Shares  of such  Person  are not at such  time  and  have  not been
continuously  over the  preceding  twelve  (12) month  period  registered  under
Section 12 of the Exchange Act, and such Person is a direct or



                                      -35-

<PAGE>



indirect  Subsidiary  of another  Person the Common Shares of which are and have
been so registered,  "Principal Party" shall refer to such other Person;  (2) in
case such  Person is a  Subsidiary,  directly  or  indirectly,  of more than one
Person,  the  Common  Shares  of two or  more of  which  are  and  have  been so
registered,  "Principal  Party"  shall refer to whichever of such Persons is the
issuer of the Common Shares having the greatest  aggregate market value; and (3)
in case such Person is owned, directly or indirectly,  by a joint venture formed
by two or more Persons that are not owned,  directly or indirectly,  by the same
Person,  the rules set  forth in (1) and (2)  above  shall  apply to each of the
chains of  ownership  having an interest in such joint  venture as if such party
were a  "Subsidiary"  of both or all of such joint  venturers  and the Principal
Parties in each such chain shall bear the  obligations set forth in this Section
13 in the same ratio as their  direct or indirect  interests in such Person bear
to the total of such interests.

         (c) The Company shall not  consummate any such  consolidation,  merger,
sale or transfer  unless the Principal  Party shall have a sufficient  number of
its authorized Common Shares which have not been issued or reserved for issuance
to permit the exercise in full of the Rights in accordance  with this Section 13
and unless  prior  thereto  the  Company  and such  Principal  Party  shall have
executed and delivered to the Rights Agent a  supplemental  agreement  providing
for the terms set forth in paragraphs (a) and (b) of this Section 13 and further
providing  that,  as soon as  practicable  after the date of any  consolidation,
merger,  sale or transfer  mentioned  in  paragraph  (a) of this Section 13, the
Principal Party at its own expense shall:

                  (i) prepare and file a  registration  statement  under the Act
         with respect to the Rights and the securities purchasable upon exercise
         of the Rights on an appropriate  form, and will use its best efforts to
         cause such registration statement to become effective as soon



                                      -36-

<PAGE>



         as  practicable   after  such  filing  and  remain  effective  (with  a
         prospectus at all times meeting the  requirements of the Act) until the
         Final Expiration Date;

                  (ii) use its best  efforts to qualify or  register  the Rights
         and the  securities  purchasable  upon exercise of the Rights under the
         blue sky laws of such jurisdictions as may be necessary or appropriate;
         and

                  (iii)  deliver to holders of the Rights  historical  financial
         statements for the Principal Party which comply in all respect with the
         requirements  for  registration  on Form 10-K and Form  10-Q  under the
         Exchange Act.

         The provisions of this Section 13 shall  similarly  apply to successive
mergers or  consolidations  or sales or other  transfers.  The rights under this
Section 13 shall be in addition to the rights to exercise Rights and adjustments
under Section 11(a)(ii) and shall survive any exercise thereof.

         (d) Notwithstanding  anything in this Rights Agreement to the contrary,
Section 13 shall not be applicable to a transaction  described in  subparagraphs
(a) and (b) of Section 13 (a) if: (i) such  transaction  is  consummated  with a
Person or Persons who acquired Common Shares pursuant to a Permitted Offer (or a
wholly  owned  Subsidiary  of any such  Person or  Persons);  (ii) the price per
Common Share offered in such  transaction  is not less than the price per Common
Share paid to all holders of Common Shares whose shares were purchased  pursuant
to such Permitted  Offer;  and (iii) the form of  consideration  offered in such
transaction  is the  same as the form of  consideration  paid  pursuant  to such
Permitted Offer. Upon consummation of any such transaction  contemplated by this
Section 13(d), all Rights hereunder shall expire.



                                      -37-

<PAGE>



         Section 14.  Fractional Rights and Fractional  Shares.  (a) The Company
shall not be  required  to issue  fractions  of Rights  or to  distribute  Right
Certificates  which  evidence  fractional  Rights.  In lieu  of such  fractional
Rights,  there shall be paid to the registered holders of the Right Certificates
with regard to which such  fractional  Rights would  otherwise  be issuable,  an
amount in cash equal to the same fraction of the current market value of a whole
Right.  For the purposes of this Section  14(a),  the current  market value of a
whole  Right  shall be the  closing  price of the  Rights  for the  Trading  Day
immediately  prior to the date on which such  fractional  Rights would have been
otherwise issuable.  The closing price for any day shall be the last sale price,
regular  way,  or, in case no such sale takes place on such day,  the average of
the closing bid and asked prices, regular way, in either case as reported in the
principal  consolidated  transaction reporting system with respect to securities
listed or admitted to trading on the New York Stock  Exchange  or, if the Rights
are not  listed or  admitted  to  trading  on the New York  Stock  Exchange,  as
reported in the principal consolidated transaction reporting system with respect
to securities listed on the principal national  securities exchange on which the
Rights are  listed or  admitted  to trading  or, if the Rights are not listed or
admitted to trading on any national securities  exchange,  the last quoted price
or, of not so quoted,  the  average of the high bid and low asked  prices in the
over-the-counter  market, as reported by NASDAQ or such other system then in use
or, if on any such date the Rights are not quoted by any such organization,  the
average of the  closing  bid and asked  prices as  furnished  by a  professional
market maker making a market in the Rights selected by the Board of Directors of
the Company.  If on any such date no such market maker is making a market in the
Rights, the fair value of the Rights on such date as determined in good faith by
the Board of Directors of the Company shall be used.



                                      -38-

<PAGE>


         (b) The Company  shall not be required to issue  fractions of Preferred
Shares (other than fractions which are one  one-thousandth or integral multiples
of one  one-thousandth  of a Preferred  Share) upon exercise of the Rights or to
distribute  certificates which evidence fractional  Preferred Shares (other than
fractions   which  are  one   one-thousandth   or  integral   multiples  of  one
one-thousandth of a Preferred Share).  Fractions of Preferred Shares in integral
multiples of one one-thousandth of a Preferred Share may, at the election of the
Company,  be  evidenced  by  depositary  receipts,  pursuant  to an  appropriate
agreement  between the Company and a depositary  selected by it;  provided  that
such agreement shall provide that the holders of such depositary  receipts shall
have the  rights,  privileges  and  preferences  to which they are  entitled  as
beneficial  owners  of the  Preferred  Shares  represented  by  such  depositary
receipts. In lieu of fractional Preferred Shares that are not one one-thousandth
or integral  multiples of one  one-thousandth  of a Preferred Share, the Company
shall  pay to the  registered  holders  of Right  Certificates  at the time such
rights  are  exercised  as herein  provided  an amount in cash equal to the same
fraction of the current  market value of one  Preferred  Share.  For purposes of
this paragraph  (b), the current market value of a Preferred  Share shall be the
closing  price of a  Preferred  Share  (as  determined  pursuant  to the  second
sentence of Section  11(d)(i)  hereof) for the Trading Day immediately  prior to
the date of such exercise.

         (c)  Following  the  occurrence  of one of the  transactions  or events
specified  in Section  11 giving  rise to the right to  receive  Common  Shares,
capital stock equivalents (other than Preferred Shares) or other securities upon
the exercise of a Right, the Company shall not be required to issue fractions of
shares  or units of such  Common  Shares,  capital  stock  equivalents  or other
securities  upon  exercise  of the Rights or to  distribute  certificates  which
evidence  fractions of such Common  Shares,  capital stock  equivalents or other
securities. In lieu of fractional shares or units of such



                                      -39-

<PAGE>



Common Shares,  capital stock equivalents or other  securities,  the Company may
pay to the registered  holders or Right Certificates at the time such Rights are
exercised as herein provided an amount in cash equal to the same fraction of the
current  market value of a share or unit of such Common  Shares,  capital  stock
equivalents or other securities. For purposes of this Section 14(c), the current
market value shall be determined in the manner set forth in Section 11(d) hereof
for the Trading Day immediately  prior to the date of such exercise and, if such
capital stock equivalent is not traded, each such capital stock equivalent shall
have the value of one one-thousandth of a Preferred Share.

         (d) The  holder of a Right by the  acceptance  of the  Right  expressly
waives his right to receive any fractional  Rights or any fractional shares upon
exercise of a Right (except as provided above).

         Section 15.  Rights of Action.  All rights of action in respect of this
Rights Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective  registered holders of the Right
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares); and any registered holder of any Right Certificate (or, prior to
the Distribution Date, of the Common Shares),  without the consent of the Rights
Agent  or of the  holder  of any  other  Right  Certificate  (or,  prior  to the
Distribution Date, of the Common Shares), may, in his own behalf and for his own
benefit,  enforce, and may institute and maintain any suit, action or proceeding
against  the Company to enforce,  or  otherwise  act in respect of, his right to
exercise  the Rights  evidenced  by such Right  Certificate  and in this  Rights
Agreement.  Without  limiting the  foregoing  or any  remedies  available to the
holders of Rights,  it is specifically  acknowledged  that the holders of Rights
would not have an adequate remedy at law for any breach



                                      -40-

<PAGE>



of this Rights  Agreement  and will be entitled to specific  performance  of the
obligations under, and injunctive relief against actual or threatened violations
of the obligations of any Person subject to, this Rights Agreement.

         Section 16.  Agreement of Right  Holders.  Every holder of a Right,  by
accepting  the same,  consents  and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

         (a) prior to the  Distribution  Date,  the Rights will be  transferable
only in connection with the transfer of the Common Shares;

         (b)  after  the   Distribution   Date,  the  Right   Certificates   are
transferable  only on the registry  books of the Rights Agent if  surrendered at
the principal office or offices of the Rights Agent designated for such purpose,
duly  endorsed or  accompanied  by a proper  instrument of transfer and with the
appropriate form fully executed;

         (c) subject to Section 6 and Section 7(f)  hereof,  the Company and the
Rights  Agent may deem and treat the person in whose name the Right  Certificate
(or, prior to the Distribution  Date, the associated Common Shares  certificate)
is registered as the absolute owner thereof and of the Rights evidenced  thereby
(notwithstanding any notations of ownership or writing on the Right Certificates
or the  associated  Common  Shares  certificate  made by anyone  other  than the
Company or the Rights  Agent)  for all  purposes  whatsoever,  and  neither  the
Company  nor the Rights  Agent,  subject to the last  sentence  of Section  7(e)
hereof shall be affected by any notice to the contrary; and

         (d) notwithstanding  anything in this Rights Agreement to the contrary,
neither the Company nor the Rights Agent shall have any  liability to any holder
of a Right or a  beneficial  interest in a Right or other  Person as a result of
its inability to perform any of its obligations under



                                      -41-

<PAGE>



this Rights  Agreement by reason of any  preliminary or permanent  injunction or
other order, decree or ruling issued by a court of competent  jurisdiction or by
a  governmental,  regulatory  or  administrative  agency or  commission,  or any
statute,  rule,  regulation  or executive  order  promulgated  or enacted by any
governmental authority, prohibiting or otherwise restraining performance of such
obligation; provided, however, the Company must use its best efforts to have any
such order, decree or ruling lifted or otherwise overturned as soon as possible.

         Section  17.  Right  Certificate  Holder Not Deemed a  Shareholder.  No
holder,  as such, of any Right  Certificate  shall be entitled to vote,  receive
dividends or be deemed for any purpose the holder of the Preferred Shares or any
other  securities  of the  Company  which  may at any  time be  issuable  on the
exercise of the Rights represented  thereby, nor shall anything contained herein
or in any Right  Certificate be construed to confer upon the holder of any Right
Certificate,  as such,  any of the rights of a shareholder of the Company or any
right to vote for the  election of  directors  or upon any matter  submitted  to
shareholders  at any  meeting  thereof,  or to give or  withhold  consent to any
corporate  action,  or to receive  notice of meeting or other actions  affecting
shareholders  (except as provided in Section 25 hereof), or to receive dividends
or subscription  rights,  or otherwise,  until the Right or Rights  evidenced by
such  Right  Certificate  shall  have  been  exercised  in  accordance  with the
provisions hereof.

         Section 18.  Concerning the Rights Agent.  The Company agrees to pay to
the  Rights  Agent  reasonable  compensation  for all  services  rendered  by it
hereunder and, from time to time, on demand of the Rights Agent,  its reasonable
expenses and counsel fees and other disbursements incurred in the administration
and execution of this Rights  Agreement and the exercise and  performance of its
duties hereunder. The Company also agrees to indemnify the Rights Agent for,



                                      -42-

<PAGE>



and to hold it harmless  against,  any loss,  liability,  or  expense,  incurred
without  gross  negligence,  bad faith or willful  misconduct on the part of the
Rights  Agent,  for anything  done or omitted by the Rights Agent in  connection
with the acceptance and  administration of this Rights Agreement,  including the
costs and expenses of defending against any claim of liability in the premises.

         The Rights Agent shall be protected  and shall incur no liability  for,
or in respect of any action taken, suffered or omitted by it in connection with,
its  administration  of  this  Rights  Agreement  in  reliance  upon  any  Right
Certificate or certificate for the Preferred  Shares or for other  securities of
the  Company,   instrument  of  assignment  or  transfer,   power  of  attorney,
endorsement,   affidavit,  letter,  notice,  direction,   consent,  certificate,
statement,  or other  paper or  document  believed by it to be genuine and to be
signed, executed and, where necessary,  verified or acknowledged,  by the proper
person or  persons,  or  otherwise  upon the  advice of  counsel as set forth in
Section 20 hereof.

         Section 19. Merger or  Consolidation or Change of Name of Rights Agent.
Any corporation into which the Rights Agent or any successor Rights Agent may be
merged or with which it may be consolidated,  or any corporation  resulting from
any merger or  consolidation  to which the Rights Agent or any successor  Rights
Agent shall be a party, or any  corporation  succeeding to the stock transfer or
corporate  trust  business of the Rights Agent or any  successor  Rights  Agent,
shall be the successor to the Rights Agent under this Rights  Agreement  without
the  execution  or filing of any paper or any  further act on the part of any of
the  parties  hereto,  provided  that such  corporation  would be  eligible  for
appointment  as a  successor  Rights  Agent under the  provisions  of Section 21
hereof.  In case at the time such  successor  Rights Agent shall  succeed to the
agency created by this Rights Agreement,  any of the Rights  Certificates  shall
have been



                                      -43-

<PAGE>



countersigned  but not delivered,  any such successor Rights Agent may adopt the
countersignature  of  the  predecessor  Rights  Agent  and  deliver  such  Right
Certificates  so  countersigned;  and in  case  at that  time  any of the  Right
Certificates shall not have been  countersigned,  any successor Rights Agent may
countersign such Right Certificates either in the name of the predecessor Rights
Agent or in the name of the successor  Rights Agent;  and in all such cases such
Right  Certificates shall have the full force provided in the Right Certificates
and in this Rights Agreement.

         In case at any time the name of the Rights  Agent  shall be changed and
at such time any of the Right Certificates shall have been countersigned but not
delivered,  the Rights Agent may adopt the countersignature under its prior name
and deliver Right Certificates so countersigned; and in case at that time any of
the Right Certificates shall not have been  countersigned,  the Rights Agent may
countersign such Right  Certificates  either in its prior name or in its changed
name;  and in all such cases such Right  Certificates  shall have the full force
provided in the Right Certificates and in this Rights Agreement.

         Section 20. Duties of Rights  Agent.  The Rights Agent  undertakes  the
duties and obligations imposed by this Rights Agreement upon the following terms
and  conditions,  by  all  of  which  the  Company  and  the  holders  of  Right
Certificates, by their acceptance thereof, shall be bound:

         (a) The Rights Agent may consult  with legal  counsel (who may be legal
counsel  for the  Company),  and the opinion of such  counsel  shall be full and
complete authorization and protection to the Rights Agent as to any action taken
or omitted by it in good faith and in accordance with such opinion.



                                      -44-

<PAGE>



         (b)  Whenever  in the  performance  of its  duties  under  this  Rights
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter be proved or  established by the Company prior to taking or suffering any
action hereunder,  such fact or matter (unless other evidence in respect thereof
be herein  specifically  prescribed) may be deemed to be conclusively proved and
established by a certificate signed by any one of the Chairman of the Board, the
President, any Vice President, the Treasurer or the Secretary of the Company and
delivered to the Rights Agent; and such certificate shall be full  authorization
to the Rights  Agent for any action  taken or suffered in good faith by it under
the provisions of this Rights Agreement in reliance upon such certificate.

         (c) The Rights  Agent shall be liable  hereunder to the Company and any
other Person only for its own gross negligence, bad faith or willful misconduct.

         (d) The Rights Agent shall not be liable for or by reason of any of the
statements  of fact or recitals  contained  in this Rights  Agreement  or in the
Right  Certificates  (except  its  countersignature  thereof)  or be required to
verify the same, but all such statements and recitals are and shall be deemed to
have been made by the Company only.

         (e) The Rights Agent shall not be under any  responsibility  in respect
of the validity of this Rights  Agreement or the execution  and delivery  hereof
(except  the due  execution  hereof by the  Rights  Agent) or in  respect of the
validity or  execution  of any Right  Certificate  (except its  countersignature
thereof);  nor shall it be  responsible  for any  breach by the  Company  of any
covenant  or  condition  contained  in this  Rights  Agreement  or in any  Right
Certificate; nor shall it be responsible for any change in the exercisability of
the Rights  (including the Rights becoming void pursuant Section 7(e) hereof) or
any adjustment in the terms of the Rights (including the manner,



                                      -45-

<PAGE>



method or amount  thereof)  provided  for in  Sections  11 or 13 hereof,  or the
ascertaining  of the  existence  of facts that would  require any such change or
adjustment  (except with  respect to the  exercise of Rights  evidenced by Right
Certificates  after actual  notice that such change or  adjustment is required);
nor  shall it by any act  hereunder  be  deemed  to make any  representation  or
warranty as to the  authorization  or reservation of any Preferred  Shares to be
issued  pursuant  to this Rights  Agreement  or any Right  Certificate  or as to
whether any  Preferred  Shares or Common  Shares will,  when issued,  be validly
authorized and issued, fully paid and nonassessable.

         (f) The Company agrees that it will perform,  execute,  acknowledge and
deliver or cause to be performed, executed,  acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying  out or  performing  by the Rights Agent of
the provisions of this Rights Agreement.

         (g) The  Rights  Agent is  hereby  authorized  and  directed  to accept
instructions  with respect to the  performance of its duties  hereunder from any
one of the  Chairman  of the  Board,  the  President,  any Vice  President,  the
Treasurer or the  Secretary of the  Company,  and to apply to such  officers for
advice or instructions in connection with its duties, and it shall not be liable
for any  action  taken  or  suffered  by it in good  faith  in  accordance  with
instructions  of any such officer or for any delay in acting  while  waiting for
those instructions.

         (h) The Rights Agent and any shareholder, director, officer or employee
of the  Rights  Agent  may  buy,  sell  or deal in any of the  Rights  or  other
securities of the Company or become pecuniarily interested in any transaction in
which the  Company  may be  interested,  or  contract  with or lend money to the
Company or otherwise act as fully and freely as though it were not the Rights



                                      -46-

<PAGE>



Agent under this Rights  Agreement.  Nothing  herein  shall  preclude the Rights
Agent from acting in any other  capacity  for the Company or for any other legal
entity.

         (i) The Rights  Agent may  execute  and  exercise  any of the rights or
powers hereby vested in it or perform any duty hereunder  either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the  Company  resulting  from any such  act,  default,
neglect or misconduct,  provided  reasonable care was exercised in the selection
and continued employment thereof.

         Section 21. Change of Rights  Agent.  The Rights Agent or any successor
Rights  Agent may resign and be  discharged  from its duties  under this  Rights
Agreement  upon thirty (30) days' notice in writing mailed to the Company and to
each transfer  agent of the Common  Shares or Preferred  Shares by registered or
certified  mail,  and to the holders of the Right  Certificates  by  first-class
mail. The Company may remove the Rights Agent or any successor Rights Agent upon
thirty (30) days'  notice in writing,  mailed to the Rights  Agent or  successor
Rights  Agent,  as the case may be,  and to each  transfer  agent of the  Common
Shares or Preferred  Shares by registered or certified  mail, and to the holders
of the Right  Certificates by first-class mail. If the Rights Agent shall resign
or be removed or shall otherwise become  incapable of acting,  the Company shall
appoint a successor to the Rights Agent.  If the Company shall fail to make such
appointment  within a period of thirty  (30) days  after  giving  notice of such
removal  or  after  it has been  notified  in  writing  of such  resignation  or
incapacity by the resigning or incapacitated  Rights Agent or by the holder of a
Right Certificate (who shall, with such notice, submit his Right Certificate for
inspection by the Company),  then the registered holder of any Right Certificate
may apply to any court of competent



                                      -47-

<PAGE>



jurisdiction  for the  appointment of a new Rights Agent.  Any successor  Rights
Agent,  whether  appointed  by the  Company  or by such a court,  shall be (a) a
corporation  organized and doing business under the laws of the United States or
of the State of New York (or of any other state of the United  States so long as
such  corporation  is authorized to do business as a banking  institution in the
State of New York), in good standing, having an office in the State of New York,
which  is  authorized  under  such  laws to  exercise  corporate  trust or stock
transfer powers and is subject to supervision or examination by federal or state
authority  and  which  has at the  time of its  appointment  as  Rights  Agent a
combined  capital and surplus of at least $50 million,  or (b) an affiliate of a
corporation  described in clause (a) of this sentence.  After  appointment,  the
successor Rights Agent shall be vested with the same powers,  rights, duties and
responsibilities  as if it had been  originally  named as Rights  Agent  without
further act or deed; but the predecessor Rights Agent shall deliver and transfer
to the successor Rights Agent any property at the time held by it hereunder, and
execute and deliver any further assurance, conveyance, act or deed necessary for
the purpose.  Not later than the  effective  date of any such  appointment,  the
Company shall file notice thereof in writing with the  predecessor  Rights Agent
and transfer agent of the Common Shares, and mail a notice thereof in writing to
the  registered  holders of the Right  Certificates.  Failure to give any notice
provided  for in this  Section 21,  however,  or any defect  therein,  shall not
affect the  legality  or validity  of the  resignation  or removal of the Rights
Agent or the appointment of the successor Rights Agent, as the case may be.

         Section 22. Issuance of New Right Certificates.  Notwithstanding any of
the  provisions of this Rights  Agreement or of the Rights to the contrary,  the
Company may, at its option,  issue new Right  Certificates  evidencing Rights in
such form as may be approved by its Board of Directors to



                                      -48-

<PAGE>



reflect any adjustment or change in the Purchase Price and the number or kind or
class of shares or other  securities  or  property  purchasable  under the Right
Certificates made in accordance with the provisions of this Rights Agreement.

         In addition,  in connection  with the issuance or sale of Common Shares
following the Distribution  Date and prior to the earlier of the Redemption Date
and the Final  Expiration  Date, the Company shall with respect to Common Shares
so  issued  or sold  pursuant  to the  exercise  of stock  options  or under any
employee plan or  arrangement,  or upon the exercise,  conversion or exchange of
securities,  notes or  debentures  issued by the Company,  and may, in any other
case,  if deemed  necessary  or  appropriate  by the Board of  Directors  of the
Company, issue Right Certificates  representing the appropriate number of Rights
in  connection  with such  issuance  or sale;  provided,  however,  that (i) the
Company shall not be obligated to issue any such Right  Certificates  if, and to
the extent  that,  the Company  shall be advised by counsel  that such  issuance
would create a  significant  risk of material  adverse tax  consequences  to the
Company or the Person to whom such Right Certificate  would be issued,  and (ii)
no Right  Certificate  shall be issued if, and to the extent  that,  appropriate
adjustment shall otherwise have been made in lieu of the issuance thereof.

         Section 23. Redemption.  (a) The Board of Directors of the Company may,
at its option,  at any time prior to the earlier of (x) any Person first becomes
an Acquiring Person or (y) the Final  Expiration  Date,  redeem all but not less
than all the then  outstanding  Rights at a redemption  price of $.01 per Right,
appropriately  adjusted to reflect any stock  split,  stock  dividend or similar
transaction  occurring  after  the date  hereof  (such  redemption  price  being
hereinafter referred to as the "Redemption Price"). The redemption of the Rights
by the Board of Directors may be made  effective at such time, on such basis and
with such conditions as the Board of Directors in its sole


                                      -49-

<PAGE>



discretion  may  establish.  The Company may, at its option,  pay the Redemption
Price either in Common Shares (based on the "current per share market price," as
defined in Section 11(d) hereof,  of the Common Share at the time of redemption)
or cash;  provided  that if the Company  elects to pay the  Redemption  Price in
Common Shares,  the Company shall not be required to issue any fractional Common
Shares and the number of Common  Shares  issuable to each holder of Rights shall
be rounded down to the next whole share.

         (b)  Immediately  upon the  action  of the  Board of  Directors  of the
Company  ordering the redemption of the Rights  pursuant to Section 23(a) (or at
such other time as is specified by such Board of Directors action),  and without
any further action and without any notice, the right to exercise the Rights will
terminate  and the only right  thereafter  of the holders of Rights  shall be to
receive the Redemption  Price for each Right so held. The Company shall promptly
give public notice of any such redemption;  provided,  however, that the failure
to give, or any defect in, any such notice shall not affect the validity of such
redemption.  Within 10 days after such action of the Board of Directors ordering
the redemption of the Rights pursuant to Section 23(a) (or at such other time as
is specified by such Board of Directors action), the Company shall mail a notice
of  redemption to all the holders of the then  outstanding  Rights at their last
addresses as they appear upon the  registry  books of the Rights Agent or, prior
to the  Distribution  Date, on the registry  books of the transfer agent for the
Common Shares. Any notice which is mailed in the manner herein provided shall be
deemed given, whether or not the holder receives the notice. Each such notice of
redemption  shall state the method by which the payment of the Redemption  Price
will be made.  Neither the Company nor any of its  Affiliates or Associates  may
redeem, acquire or purchase for



                                      -50-

<PAGE>



value any Rights at any time in any  manner  other  than that  specifically  set
forth in this  Section  23, and other than in  connection  with the  purchase of
Common Shares prior to the Distribution Date.

         (c) The Company may, at its option,  discharge  all of its  obligations
with respect to the Rights by (i) issuing a press release  announcing the manner
of redemption of the Rights in accordance  with this  Agreement and (ii) mailing
payment of the Redemption Price to the registered holders of the Rights at their
last  addresses  as they appear on the  registry  books of the Rights  Agent or,
prior to the  Distribution  Date, on the registry books of the Transfer Agent of
the  Common  Shares,  and upon such  action,  all  outstanding  Rights and Right
Certificate shall be null and void without any further action by the Company.

         Section 24. Exchange. (a) The Board of Directors of the Company may, at
its option, at any time after any Person becomes an Acquiring  Person,  exchange
all or part of the then  outstanding  and  exercisable  Rights  (which shall not
include  Rights that have become void pursuant to the provisions of Section 7(e)
hereof)  for Common  Shares of the  Company at an  exchange  ratio of one Common
Share per Right,  appropriately  adjusted  to  reflect  any stock  split,  stock
dividend or similar  transaction  occurring after the date hereof (such exchange
ratio being hereinafter  referred to as the "Exchange  Ratio").  Notwithstanding
the  foregoing,  the Board of  Directors  shall not be  empowered to effect such
exchange at any time after any Person (other than the Company, any Subsidiary of
the Company,  any employee benefit plan of the Company or any such Subsidiary or
any entity holding Common Shares for or pursuant to the terms of any such plan),
together  with  all  Affiliates  and  Associates  of such  Person,  becomes  the
Beneficial Owner of 50% or more of the Common Shares then outstanding; provided,
that  solely  for  purposes  of this  sentence,  no Person  shall be deemed  the
Beneficial Owner of any shares of capital stock of the Company into which



                                      -51-

<PAGE>



convertible  securities  of the Company not  entitled to vote  generally  in the
election of directors (other than upon conversion) may be converted.

         (b)  Immediately  upon the  action  of the  Board of  Directors  of the
Company  ordering the exchange of any Rights  pursuant to subsection (a) of this
Section 24 and without any further  action and without any notice,  the right to
exercise such Rights shall  terminate and the only right  thereafter of a holder
of such Rights  shall be to receive  that number of Common  Shares  equal to the
number of such Rights held by such holder  multiplied by the Exchange Ratio. The
Company  shall  promptly  give  public  notice of any such  exchange;  provided,
however,  that the  failure to give,  or any defect in,  such  notice  shall not
affect the validity of such exchange.  The Company  promptly shall mail a notice
of any  such  exchange  to all of the  holders  of such  Rights  at  their  last
addresses as they appear upon the registry books of the Rights Agent. Any notice
which is mailed in the manner herein provided shall be deemed given,  whether or
not the holder receives the notice. Each such notice of exchange shall state the
method by which the exchange of Common  Shares for Rights will be effected  and,
in the  event of any  partial  exchange,  the  number of  Rights  which  will be
exchanged.  Any partial  exchange shall be effected pro rata based on the number
of Rights (other than Rights which have become void  pursuant to the  provisions
of Section 7(e) hereof) held by each holder of Rights.

         (c) In any exchange  pursuant to this  Section 24, the Company,  at its
option, may substitute Preferred Shares (or equivalent preferred shares, as such
term is defined in Section  11(b)  hereof) for some or all of the Common  Shares
exchangeable  for  Rights,  at  the  initial  rate  of one  one-thousandth  of a
Preferred  Share (or  equivalent  preferred  share) for each  Common  Share,  as
appropriately  adjusted  to  reflect  adjustments  in the  voting  rights of the
Preferred Shares pursuant



                                      -52-

<PAGE>



to the terms  thereof,  so that the fraction of a Preferred  Share  delivered in
lieu of each Common Share shall have the same voting rights as one Common Share.

         (d) In the event that there shall not be  sufficient  Common  Shares or
Preferred Shares issued but not outstanding or authorized but unissued to permit
any exchange of Rights as  contemplated  in accordance with this Section 24, the
Company  shall take all such action as may be necessary to authorize  additional
Common Shares or Preferred Shares for issuance upon exchange of the Rights.

         Section  25.  Notice of Certain  Events (a) In case the  Company  shall
propose (i) to declare or pay any dividend  payable in stock of any class to the
holders of its Preferred Shares or to make any other distribution to the holders
of its Preferred Shares (other than a regular quarterly cash dividend),  (ii) to
offer to the  holders of its  Preferred  Shares  rights,  options or warrants to
subscribe for or to purchase any additional  Preferred Shares or shares of stock
of any class or any other  securities,  rights,  options or  warrants,  (iii) to
effect  any   reclassification   of  its   Preferred   Shares   (other   than  a
reclassification   involving  only  the  subdivision  of  outstanding  Preferred
Shares),  (iv) to effect any  consolidation or merger into or with, or to effect
any sale or other  transfer  (or to permit  one or more of its  Subsidiaries  to
effect any sale or other transfer), in one or more transactions,  of 50% or more
of the assets or earning power of the Company and its  Subsidiaries  (taken as a
whole)  to, any other  Person,  (v) to effect the  liquidation,  dissolution  or
winding  up the  Company,  or (vi)  to  effect  a  subdivision,  combination  or
consolidation of the Preferred Shares (by  reclassification or otherwise than by
payment of dividends in Preferred Shares),  then, in each such case, the Company
shall give to each holder of a Right Certificate,  in accordance with Section 26
hereof,  a notice of such proposed  action,  which shall specify the record date
for the purposes of such stock dividend, or distribution



                                      -53-

<PAGE>



of rights,  options  or  warrants,  or the date on which such  reclassification,
consolidation,  merger, sale, transfer, liquidation,  dissolution, or winding up
is to take place and the date of  participation  therein  by the  holders of the
Preferred  Shares,  if any such date is to be fixed, and such notice shall be so
given in the case of any action covered by clause (i) or (ii) above at least ten
(10) days  prior to the record  date for  determining  holders of the  Preferred
Shares for purposes of such action, and in the case of any such other action, at
least ten (10) days prior to the date of the taking of such  proposed  action or
the date of  participation  therein  by the  holders  of the  Preferred  Shares,
whichever shall be the earlier.

         (b) In case the event  set  forth in  Section  11(a)(ii)  hereof  shall
occur, then (i) the Company shall as soon as practicable thereafter give to each
holder of a Right Certificate, in accordance with Section 26 hereof, a notice of
the  occurrence  of such event,  which notice  shall  describe the event and the
consequences of the event to holders of Rights under Section  11(a)(ii)  hereof,
and (ii) all  references in the  preceding  subsection  (a) to Preferred  Shares
shall  be  deemed   thereafter  to  refer  also  to  Common  Shares  and/or,  if
appropriate, other securities of the Company.

         Section  26.  Notices.  Notices or demands  authorized  by this  Rights
Agreement  to be given or made by the Rights Agent or by the holder of any Right
Certificate to or on the Company shall be sufficiently  given or made if sent by
first-class mail, postage prepaid,  addressed (until another address is filed in
writing with the Rights Agent) as follows:

                           CIDCO Incorporated
                           220 Cochrane Circle
                           Morgan Hill, California  95037
                           Attention:  President

                  with a copy to:




                                      -54-

<PAGE>



                           Carter, Ledyard & Milburn
                           Two Wall Street
                           New York, New York 10005
                           Attention: James E. Abbott, Esq.

Subject to the provisions of Section 21 hereof,  any notice or demand authorized
by this Rights  Agreement to be given or made by the Company or by the holder of
any Right  Certificate to or on the Rights Agent shall be sufficiently  given or
made if sent by first-class  mail,  postage  prepaid,  addressed  (until another
address is filed in writing with the Company) as follows:
                           United States Trust Company of New York
                           114 West 47th Street
                           New York, New York  10036
                           Attention: Corporate Trust Department

Notices or demands  authorized  by this Rights  Agreement to be given or made by
the Company or the Rights  Agent to the holder of any Right  Certificate  or, if
prior to the Distribution Date, to the holders  representing Common Shares shall
be  sufficiently  given or made if sent by first-class  mail,  postage  prepaid,
addressed  to such holder at the address of such holder as shown on the registry
books of the Company.

         Section 27. Supplements and Amendments. Prior to the Distribution Date,
the Company and the Rights Agent shall, if the Company so directs, supplement or
amend any provision of this Rights Agreement without the approval of any holders
of  certificates  representing  Common Shares.  From and after the  Distribution
Date,  the  Company  and the Rights  Agent  shall,  if the  Company so  directs,
supplement or amend this Rights Agreement without the approval of any holders of
Right  Certificates  in order  (i) to cure any  ambiguity,  (ii) to  correct  or
supplement any provision contained herein which may be defective or inconsistent
with any other provisions  herein,  (iii) to shorten or lengthen any time period
hereunder or (iv) to change or supplement the provisions hereunder in any



                                      -55-

<PAGE>



manner which the Company may deem  necessary  or  desirable  and which shall not
adversely affect the interests of the holders of Right Certificates  (other than
an Acquiring  Person or an  Affiliate  or  Associate  of an  Acquiring  Person);
provided, however, that this Rights Agreement may not be supplemented or amended
to  lengthen,  pursuant  to clause  (iii) of this  sentence,  (A) a time  period
relating  to when the Rights may be  redeemed at such time as the rights are not
then redeemable, or (B) any other time period unless such lengthening is for the
purpose of  protecting,  enhancing  or  clarifying  the  rights  of,  and/or the
benefits to, the holders of Rights.  Upon the delivery of a certificate  from an
appropriate  officer of the Company which states that the proposed supplement or
amendment is in  compliance  with the terms of this Section 27, the Rights Agent
shall execute such  supplement or  amendment,  provided that such  supplement or
amendment  does not  adversely  affect the rights or  obligations  of the Rights
Agent  under  Section 18 or Section 20 of this  Rights  Agreement.  Prior to the
Distribution  Date,  the  interests  of the  holders  of Rights  shall be deemed
coincident with the interests of the holders of Common Shares.

         Section 28.  Determination and Actions by the Board of Directors,  Etc.
The  Board of  Directors  of the  Company  shall  have the  exclusive  power and
authority to  administer  this Rights  Agreement  and to exercise all rights and
powers specifically granted to the Board, or the Company, or as may be necessary
or advisable in the administration of this Rights Agreement,  including, without
limitation,  the right and power to (i) interpret the  provisions of this Rights
Agreement,  and (ii) make all  determinations  deemed necessary or advisable for
the administration of this Rights Agreement  (including,  without limitation,  a
determination  to  redeem  or not  redeem  the  Rights  or to amend  the  Rights
Agreement and whether any proposed amendment  adversely affects the interests of
the holders of Right  Certificates).  For all purposes of this Rights Agreement,
any calculation of



                                      -56-

<PAGE>



the number of Common  Shares or any other  securities of which any Person is the
Beneficial  Owner,  shall be made in  accordance  with the last sentence of Rule
13d-3(d)(1)(i) of the General Rules and Regulations under the Exchange Act as in
effect on the date of this Rights  Agreement.  All such  actions,  calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
in good faith,  shall (x) be final,  conclusive and binding on the Company,  the
Rights Agent, the holders of the Right  Certificates and all other parties,  and
(y)  not  subject  the  Board  to any  liability  to the  holders  of the  Right
Certificates.

         Section 29. Successors. All the covenants and provisions of this Rights
Agreement  by or for the benefit of the  Company or the Rights  Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         Section 30. Benefits of this Rights  Agreement.  Nothing in this Rights
Agreement shall be construed to give to any person or corporation other than the
Company,  the Rights Agent and the registered  holders of the Right Certificates
(and, prior to the Distribution  Date, the Common Shares) any legal or equitable
right,  remedy or claim under this Rights  Agreement;  but this Rights Agreement
shall be for the sole and exclusive benefit of the Company, the Rights Agent and
the registered holders of the Right Certificates (and, prior to the Distribution
Date, the Common Shares).

         Section  31.  Severability.   If  any  term,  provision,   covenant  or
restriction  of  this  Rights   Agreement  is  held  by  a  court  of  competent
jurisdiction  or other  authority  to be  invalid,  void or  unenforceable,  the
remainder of the terms,  provisions,  covenants and  restrictions of this Rights
Agreement shall remain in full force and effect and shall in no way be affected,
impaired or invalidated.



                                      -57-

<PAGE>


         Section  32.  Governing  Law.  This  Rights  Agreement  and each  Right
Certificate  issued  hereunder  shall be deemed to be a contract  made under the
laws of the State of  Delaware  and for all  purposes  shall be  governed by and
construed in accordance  with the laws of such State  applicable to contracts to
be made and performed entirely within such State.

         Section 33. Counterparts.  This Rights Agreement may be executed in any
number of counterparts and each of such  counterparts  shall for all purposes be
deemed to be an original,  and all such counterparts  shall together  constitute
but one and the same instrument.

         Section 34. Descriptive  Headings.  Descriptive headings of the several
Sections of this Rights  Agreement are inserted for  convenience  only and shall
not  control or affect  the  meaning or  construction  of any of the  provisions
hereof.

         IN  WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Rights
Agreement  to be duly  executed and  attested,  all as of the day and year first
above written.



Attest:                                            CIDCO INCORPORATED

By: /s/ Richard Kent                               By: /s/ Paul G. Locklin
- --------------------------                         --------------------------
Name:    Richard Kent                              Name: Paul G. Locklin
Title:   Secretary                                 Title:   President

Attest:                                            UNITED STATES TRUST COMPANY
                                                     OF NEW YORK

By: /s/ Robert F. Lee                              By: /s/ Gerard F. Ganey
- --------------------------                         --------------------------
Name: Robert F. Lee                                Name: Gerard F. Ganey
Title:   Assistant Secretary                       Title:   Vice President






                                      -58-

<PAGE>


                                                                     Exhibit A


                   CERTIFICATE OF DESIGNATION, NUMBER, POWERS
               PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL,
                AND OTHER SPECIAL RIGHTS AND THE QUALIFICATIONS,
               LIMITATIONS, RESTRICTIONS, AND OTHER DISTINGUISHING
                                 CHARACTERISTICS
                                       of
                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK
                                       of
                               CIDCO INCORPORATED

                         (Pursuant to Section 151 of the
                        Delaware General Corporation Law)
                          -----------------------------


It is hereby certified that:

         1.  The name of the corporation (the "Company") is CIDCO Incorporated.

         2. The certificate of  incorporation,  as amended and restated,  of the
Company  authorizes the issuance of 1,000,000 shares of preferred stock of a par
value of $0.01 each and expressly vests in the Board of Directors of the Company
the authority provided therein to issue any or all of said shares in one or more
series and by  resolution  or  resolutions,  the  designation,  number,  full or
limited voting powers, or the denial of voting powers, preferences and relative,
participating,  optional,  and  other  special  rights  and the  qualifications,
limitations,  restrictions,  and other  distinguishing  characteristics  of each
series to be issued.

         3. The Board of  Directors of the  Company,  pursuant to the  authority
expressly  vested in it as  aforesaid,  has  adopted the  following  resolutions
creating a series of Series A Junior Participating Preferred Stock:

                  RESOLVED, that pursuant to the authority granted to and vested
         in the  Board of  Directors  of this  Company  in  accordance  with the
         provisions of the certificate of incorporation,  the Board of Directors
         hereby  creates  a series of  Series A Junior  Participating  Preferred
         Stock,  with a par value of $0.01 per share,  of the Company and hereby
         states the  designation  and number of shares,  and fixes the  relative
         rights,  preferences  and  limitations  thereof  (in  addition  to  the
         provisions  set forth in the  certificate  of  incorporation  which are
         applicable  to the  preferred  stock  of all  classes  and  series)  as
         follows:





<PAGE>



         Section 1. Number and  Designation.  The number of shares to constitute
this series of the total  authorized  amount of  1,000,000  shares of  preferred
stock of the Company shall be 300,000 shares and the  designation of such shares
shall be "Series A Junior Participating  Preferred Stock" (hereinafter  referred
to as the "Series A Preferred Stock"), par value of $0.01 per share. Such number
of shares may be increased or decreased by resolution of the Board of Directors;
provided,  however, that no decrease shall reduce the number of shares of Series
A Preferred  Stock to a number  less than the number of shares then  outstanding
plus the number of shares  reserved for issuance  upon  exercise of  outstanding
options,  rights,  or warrants or upon conversion of any outstanding  securities
issued by the Company  convertible  into Series A Preferred Stock. All shares of
Series A Preferred Stock shall be identical with each other in all respects.

         Section 2.  Dividends and  Distributions.  (a) Subject to the prior and
superior  rights of the holders of any shares of any series of  preferred  stock
(or similar  stock)  ranking prior and superior to the Series A Preferred  Stock
with respect to dividends,  the holders of shares of Series A Preferred Stock in
preference  to the  holders  of Common  Stock,  par value  $0.01 per share  (the
"Common Stock") of the Company, and of any other junior stock, shall be entitled
to receive,  when,  as and if declared by the Board of  Directors  out of assets
legally  available for the purpose,  quarterly  dividends payable in cash on the
first  business day of March,  June,  September  and December in each year (each
such date being  referred to herein as a  "Quarterly  Dividend  Payment  Date"),
commencing on the first Quarterly Dividend Payment Date after the first issuance
of a share or fraction of a share of Series A Preferred  Stock, in an amount per
share  (rounded to the  nearest  cent) equal to the greater of (a) $10.00 or (b)
subject to the provision for adjustment  hereinafter set forth,  1,000 times the
aggregate per share amount of all cash dividends,  and 1,000 times the aggregate
per  share  amount  (payable  in  kind)  of  all  non-cash  dividends  or  other
distributions,  other  than a dividend  payable  in shares of Common  Stock or a
subdivision of the outstanding  shares of Common Stock (by  reclassification  or
otherwise),  declared  on the  Common  Stock  since  the  immediately  preceding
Quarterly Dividend Payment Date or, with respect to the first Quarterly Dividend
Payment  Date,  since the first  issuance of any share or fraction of a share of
Series A Preferred  Stock;  provided,  however,  that if at any time the Company
shall (i)  declare or pay any  dividend  on the Common  Stock  payable in Common
Stock,  (ii)  subdivide (by a stock split or otherwise) the  outstanding  Common
Stock into a larger  number of Common Stock or (iii) combine (by a reverse stock
split or otherwise) the outstanding Common Stock into a smaller number of Common
Stock, then in each such event the amount to which holders of shares of Series A
Preferred Stock were entitled  immediately  prior to such event under clause (b)
of  the  preceding  sentence  shall  be  adjusted  to  a  number  determined  by
multiplying  such amount by a fraction,  the numerator of which is the aggregate
number  of  Common  Stock  outstanding  immediately  after  such  event  and the
denominator  of  which  is the  aggregate  number  of  Common  Stock  that  were
outstanding  immediately  prior to such  event (and  rounding  the result to the
nearest whole  number);  and provided  further,  that if at any time the Company
shall issue any shares of its capital stock in a  reclassification  or change of
the outstanding Common Stock (including any such  reclassification  or change in
connection  with a merger in which the  Company is the  surviving  corporation),
then in each such event such amount shall be  appropriately  adjusted to reflect
such reclassification or change.




                                       -2-

<PAGE>



         (b) The Company shall declare a dividend or  distribution on the Series
A Preferred  Stock as  provided  in  paragraph  (a) above  immediately  after it
declares a dividend or  distribution  on the Common Stock (other than a dividend
payable in shares of Common  Stock);  provided that, in the event no dividend or
distribution  shall have been  declared  on the Common  Stock  during the period
between any Quarterly  Dividend  Payment Date and the next subsequent  Quarterly
Dividend  Payment Date, a dividend of $10.00 per share on the Series A Preferred
Stock  shall  nevertheless  be payable  on such  subsequent  Quarterly  Dividend
Payment Date.

         (c) Dividends  shall begin to accrue and be  cumulative on  outstanding
shares of Series A Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series A Preferred  Stock,  unless
the date of issue of such  shares  is  prior to the  record  date for the  first
Quarterly  Dividend  Payment Date, in which case  dividends on such shares shall
begin to accrue  from the date of issue of such  shares,  or unless  the date of
issue is a Quarterly Dividend Payment Date or is a date after the record date of
the  determination  of holders of shares of Series A Preferred Stock entitled to
receive a quarterly dividend and before such Quarterly Dividend Payment Date, in
either of which events such  dividends  shall begin to accrue and be  cumulative
from such Quarterly  Dividend  Payment Date.  Accrued but unpaid dividends shall
not bear interest.  Dividends paid on the shares of Series A Preferred  Stock in
an amount less than the total  amount of such  dividends at the time accrued and
payable on such shares shall be  allocated  pro rata on a  share-by-share  basis
among all such shares at the time outstanding.  The Board of Directors may fix a
record  date for the  determination  of holders of shares of Series A  Preferred
Stock  entitled  to  receive  payment  of a dividend  or  distribution  declared
thereon,  which  record  date  shall be not more than 60 days  prior to the date
fixed for the payment thereof.

         Section 3. Voting  Rights.  The holders of shares of Series A Preferred
Stock shall have the following voting rights:

         (a) Subject to the provision for adjustment hereinafter set forth, each
share of Series A  Preferred  Stock shall  entitle  the holder  thereof to 1,000
votes on all matters submitted to a vote of the shareholders of the Company.  In
the event the  Company  shall at any time  declare  or pay any  dividend  on the
Common  Stock  payable in shares of Common  Stock,  or effect a  subdivision  or
combination  or  consolidation  of the  outstanding  shares of Common  Stock (by
reclassification  or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common  Stock,  then in each
such case the  number of votes per share to which  holders of shares of Series A
Preferred Stock were entitled  immediately prior to such event shall be adjusted
by multiplying  such number by a fraction,  the numerator of which is the number
of shares of Common  Stock  outstanding  immediately  after  such  event and the
denominator  of  which is the  number  of  shares  of  Common  Stock  that  were
outstanding immediately prior to such event.

         (b)  Except as  otherwise  provided  herein or by law,  the  holders of
shares of Series A  Preferred  Stock and the  holders of shares of Common  Stock
shall  vote  together  as  one  class  on all  matters  submitted  to a vote  of
stockholders of the Company.




                                       -3-

<PAGE>



         (c) If, on the date used to  determine  shareholders  of record for any
meeting of  shareholders  of the Company at which  directors  are to be elected,
dividends on the Series A Preferred Stock shall be in arrears in an amount equal
to at least six quarterly dividends (whether or not consecutive),  the number of
the Board of  Directors of the  Corporation  shall be increased by two as of the
date of such  meeting  and the  holders  of  Series A  Preferred  Stock  (voting
separately  as a class with all other series of  Preferred  Stock of the Company
upon which like voting rights have been conferred and are  exercisable)  will be
entitled to vote for and elect such two additional directors of the Company. The
right of the holders of Series A Preferred Stock to vote for such two additional
directors shall terminate when all accrued and unpaid  dividends on the Series A
Preferred  Stock have been declared and paid or set apart for payment.  The term
of office of the  Directors  so elected  shall  terminate  immediately  upon the
termination  of the right of the  holders of Series A  Preferred  Stock (and all
other  series  of  Preferred  Stock  of the  Corporation)  to vote  for such two
additional  directors.  In connection with the right to vote for such additional
directors,  each holder of Series A Preferred  Stock will have one vote for each
share held.

         (d) Except as set forth herein (or as otherwise  required by applicable
law),  holders  of Series A  Preferred  Stock  shall  have no general or special
voting  rights and their  consent shall not be required for taking any corporate
action.

         Section 4. Certain  Restrictions.  (a) Whenever quarterly  dividends or
other  dividends  or  distributions  payable on the Series A Preferred  Stock as
provided  in Section 2 are in  arrears,  thereafter  and until all  accrued  and
unpaid dividends an distributions,  whether or not declared, on shares of Series
A Preferred  Stock  outstanding  shall have been paid in full, the Company shall
not

                  (i) declare or pay dividends, or make any other distributions,
on  any  shares  of  stock  ranking  junior  (either  as to  dividends  or  upon
liquidation, dissolution or winding up) to the Series A Preferred Stock;

                  (ii)   declare   or  pay   dividends,   or  make   any   other
distributions,  on any  shares  of  stock  ranking  on a  parity  (either  as to
dividends  or upon  liquidation,  dissolution  or winding  up) with the Series A
Preferred  Stock,  except dividends paid ratably on the Series A Preferred Stock
and all such  parity  stock on which  dividends  are  payable  or in  arrears in
proportion to the total amounts to which the holders of all such shares are then
entitled;

                  (iii)   redeem  or   purchase   or   otherwise   acquire   for
consideration  (except as provided in (iv)  below)  shares of any stock  ranking
junior (either as to dividends or upon  liquidation,  dissolution or winding up)
to the Series A  Preferred  Stock,  provided  that the  Company  may at any time
redeem,  purchase  or  otherwise  acquire  shares  of any such  junior  stock in
exchange  for shares of any stock of the Company  ranking  junior  (either as to
dividends  or upon  dissolution,  liquidation  or  winding  up) to the  Series A
Preferred Stock;

                  (iv) redeem or purchase or otherwise acquire for consideration
any shares of Series A  Preferred  Stock,  or any  shares of stock  ranking on a
parity (either as to dividends or upon



                                       -4-

<PAGE>



liquidation,  dissolution  or  winding  up) with the Series A  Preferred  Stock,
except in accordance with a purchase offer made in writing or by publication (as
determined  by the Board of  Directors)  to all holders of such shares upon such
terms as the Board of Directors,  after  consideration of the respective  annual
dividend  rates and other  relative  rights and  preferences  of the  respective
series and  classes,  shall  determine  in good  faith  will  result in fair and
equitable treatment among the respective series or classes.

         (b) The  Company  shall not permit  any  subsidiary  of the  Company to
purchase  or  otherwise  acquire  for  consideration  any shares of stock of the
Company  unless  the  Company  could,  under  paragraph  (a) of this  Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

         Section 5.  Reacquired  Shares.  Any shares of Series A Preferred Stock
purchased or otherwise acquired by the Company in any manner whatsoever shall be
retired and cancelled  promptly after the acquisition  thereof.  All such shares
shall upon their cancellation become authorized but unissued shares of Preferred
Stock and may be reissued as part of a new series of Preferred  Stock subject to
the conditions and restrictions on issuance set forth herein, in the Certificate
of  Incorporation,  in any other  Certificate of Amendment  creating a series of
Preferred Stock or as otherwise required by law.

         Section  6.   Liquidation,   Dissolution   or  Winding   Up.  Upon  any
liquidation,  dissolution or winding up of the Company, no distribution shall be
made  (1) to the  holders  of  shares  of stock  ranking  junior  (either  as to
dividends  or upon  liquidation,  dissolution  or  winding  up) to the  Series A
Preferred  Stock  unless,  prior  thereto,  the  holders  of  shares of Series A
Preferred Stock shall have received a minmum of $1,000 per share, plus an amount
equal to accrued and unpaid dividends and distributions thereon,  whether or not
declared,  to the date of such  payment,  provided that the holders of shares of
Series A Preferred  Stock shall be entitled to receive an  aggregate  amount per
share,  subject to the provision for adjustment  hereinafter set forth, equal to
1,000  times the  aggregate  amount to be  distributed  per share to  holders of
shares of Common  Stock,  or (2) to the holders of shares of stock  ranking on a
parity (either as to dividends or upon  liquidation,  dissolution or winding up)
with the Series A Preferred  Stock,  except  distributions  made  ratably on the
Series A Preferred  Stock and all such parity stock in  proportion  to the total
amounts  to which  the  holders  of all  such  shares  are  entitled  upon  such
liquidation,  dissolution  or winding up. In the event the Company  shall at any
time declare or pay any dividend on the Common Stock payable in shares of Common
Stock,  or  effect  a  subdivision  or  combination  or   consolidation  of  the
outstanding  shares of Common Stock (by  reclassification  or otherwise  than by
payment of a dividend in shares of Common Stock) into a greater or lesser number
of shares of Common Stock,  then in each such case the aggregate amount to which
holders of shares of Series A Preferred Stock were entitled immediately prior to
such event under the proviso in clause (1) of the  preceding  sentence  shall be
adjusted by multiplying  such amount by a fraction the numerator of which is the
number of shares of Common Stock  outstanding  immediately  after such event and
the  denominator  of which is the  number of shares  of Common  Stock  that were
outstanding immediately prior to such event.




                                       -5-

<PAGE>



         Section 7. Consolidation,  Merger, etc. In case the Company shall enter
into any  consolidation,  merger,  combination or other transaction in which the
shares  of  Common  Stock are  exchanged  for or  changed  into  other  Stock or
securities,  cash and/or any other property, then in any such case the shares of
Series A  Preferred  Stock  shall at the same  time be  similarly  exchanged  or
changed in an amount per share (subject to the provision for  adjustment  herein
set forth) equal to 1,000 times the aggregate amount of stock, securities,  cash
and/or any other property  (payable in kind),  as the case may be, into which or
for which each share of Common Stock is changed or  exchanged.  In the event the
Company  shall at any time  declare  or pay any  dividend  on the  Common  Stock
payable in shares of Common Stock,  or effect a subdivision  or  combination  or
consolidation of the outstanding shares of Common Stock (by  reclassification or
otherwise  than by  payment  of a  dividend  in shares of Common  Stock)  into a
greater or lesser number of shares of Common  Stock,  then in each such case the
amount set forth in the  preceding  sentence  with  respect to the  exchange  or
change of shares of Series A Preferred  Stock  shall be adjusted by  multiplying
such amount by a  fraction,  the  numerator  of which is the number of shares of
Common Stock  outstanding  immediately  after such event and the  denominator of
which is the number of shares of Common Stock that were outstanding  immediately
prior to such event.

         Section 8. No Redemption.  The shares of Series A Preferred Stock shall
not be redeemable.

         Section 9. Ranking.  The Series A Preferred  Stock shall rank junior to
all other series of the Company's preferred stock as to the payment of dividends
and the  distribution  of  assets,  unless  the terms of any such  series  shall
provide otherwise.

         Section 10. Amendment.  The Certificate of Incorporation of the Company
shall not be further  amended  in any manner  which  would  materially  alter or
change the powers, preferences or special rights of the Series A Preferred Stock
as to affect them  adversely  without the  affirmative  vote of the holders of a
majority or more of the outstanding  shares of Series A Preferred Stock,  voting
separately as a class.

                  FURTHER  RESOLVED,   that  the  statements  contained  in  the
         foregoing  resolution  creating  and  designating  the  said  Series  A
         Preferred  Stock  and  fixing  the  number,  powers,   preferences  and
         relative,  optional,  participating,  and other special  rights and the
         qualifications,  limitations,  restrictions,  and other  distinguishing
         characteristics  thereof shall, upon the effective date of said series,
         be deemed to be



                                       -6-

<PAGE>



         included in and be a part of the  certificate of  incorporation  of the
         Company  pursuant  to the  provisions  of  Sections  104 and 151 of the
         General Corporation Law of the State of Delaware.


Signed on January 28, 1997


                                                     -----------------------
                                                     Name: Paul G. Locklin
                                                     Title: President
ATTEST:



- -----------------------
Name: Richard D. Kent
Title:  Secretary





                                       -7-

<PAGE>




                                                                     Exhibit B

                            Form of Right Certificate


Certificate
No. R-                                                             _____Rights

NOT  EXERCISABLE  AFTER JANUARY 27, 2007, OR EARLIER IF REDEEMED OR EXCHANGED BY
THE  COMPANY.  THE RIGHTS ARE  SUBJECT TO  REDEMPTION  AT $0.01 PER RIGHT ON THE
TERMS SET FORTH IN THE RIGHTS AGREEMENT.

                                Right Certificate
                                -----------------

                               CIDCO INCORPORATED


         This certifies that  ________________,  or registered  assigns,  is the
registered owner of the number of Rights set forth above, each of which entitles
the owner thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of January 27, 1997 (the "Rights Agreement"),  between CIDCO
Incorporated,  a Delaware  corporation (the "Company"),  and United States Trust
Company of New York (the "Rights  Agent"),  to purchase  from the Company at any
time  after  the  later  of the  Distribution  Date or the  effective  date of a
registration  statement  under the Act (as such terms are  defined in the Rights
Agreement)  and prior to 5:00 P.M.,  New York time, on January 27, 2007,  unless
the Rights evidenced hereby shall have been previously  redeemed or exchanged by
the Company,  at the principal  office or offices of the Rights Agent designated
for such  purpose,  or at the office of its  successor  as Rights  Agent,  a one
one-thousandth  of  a  fully  paid  non-assessable  share  of  Series  A  Junior
Participating  Preferred  Stock,  $0.01  par value per  share,  (the  "Preferred
Shares"),  of the Company,  at a purchase price of $95.00 per one one-thousandth
of a Preferred Share (the "Purchase Price"),  upon presentation and surrender of
this Right Certificate with the Form of Election to Purchase duly executed.  The
number of Rights  evidenced  by this  Right  Certificate  (and the number of one
one-thousandth of a Preferred Share which may be purchased upon exercise hereof)
set forth  above,  and the Purchase  Price set forth  above,  are the number and
Purchase  Price as of  February  14,  1997,  based on the  Preferred  Shares  as
constituted at such date.

         Upon the  occurrence  of a  Section  11(a)(ii)  Event  (as such term is
defined  in the  Rights  Agreement),  if the  Rights  evidenced  by  this  Right
Certificate are beneficially owned by (i) an Acquiring Person or an Affiliate or
Associate of any such Acquiring  Person (as such terms are defined in the Rights
Agreement),  (ii) a transferee of any such Acquiring  Person, or an Associate or
Affiliate who becomes a transferee  after the Acquiring  Person becomes such, or
(iii)  under  certain  circumstances   specified  in  the  Rights  Agreement,  a
transferee of any such  Acquiring  Person,  Associate or Affiliate who becomes a
transferee prior to or concurrently with the Acquiring Person



                                       
<PAGE>



becoming such, such Rights shall become null and void and no holder hereof shall
have any right with respect to such Rights from and after the occurrence of such
Section 11(a)(ii) Event.

         As provided in the Rights Agreement,  the Purchase Price and the number
of one  one-thousandths  of a Preferred Share or other  securities  which may be
purchased  upon the exercise of the Rights  evidenced by this Right  Certificate
are subject to modification and adjustment upon the happening of certain events,
including Triggering Events (as such term is defined in the Rights Agreement).

         This Right  Certificate is subject to all of the terms,  provisions and
conditions of the Rights Agreement,  which terms,  provisions and conditions are
hereby  incorporated  herein by  reference  and made a part  hereof and to which
Rights Agreement  reference is hereby made for a full description of the rights,
limitations  of rights,  obligations,  duties and  immunities  hereunder  of the
Rights Agent, the Company and the holders of the Right  Certificates.  Copies of
the  Rights  Agreement  are on file at the  principal  executive  offices of the
Company and the principal office of the Rights Agent.

         This Right Certificate, with or without other Right Certificates,  upon
surrender at the  principal  office of the Rights  Agent,  may be exchanged  for
another  Right  Certificate  or  Right  Certificates  of  like  tenor  and  date
evidencing  Rights  entitling the holder to purchase a like aggregate  number of
one  one-thousandths  of a  Preferred  Share or other  securities  as the Rights
evidenced by the Right Certificate or Right Certificates  surrendered shall have
entitled such holder to purchase.  If this Right  Certificate shall be exercised
in part, the holder shall be entitled to receive upon  surrender  hereof another
Right  Certificate  or Right  Certificates  for the  number of whole  Rights not
exercised.

         At any time after any person becomes an Acquiring  Person,  the Company
may exchange all or part of the then outstanding and exercisable  Rights,  other
than  Rights  that have  become  void,  for Common  Shares of the  Company at an
exchange  ratio of one Common Share per Right.  The Company is not  empowered to
effect such exchange at any time after any person  (other than the Company,  any
Subsidiary of the Company, any employee benefit plan of the Company, or any such
Subsidiary, any entity holding Common Shares for or pursuant to the terms of any
such plan), together with all Affiliates and Associates of such person,  becomes
the beneficial owner of 50% or more of the Common Shares then outstanding.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this  Certificate  may be redeemed by the  Company at a  redemption  price of
$0.01 per Right  (subject to  adjustment  as  provided in the Rights  Agreement)
payable in cash.

         No fractional  Preferred Shares will be issued upon the exercise of any
Right  or  Rights   evidenced   hereby  (other  than  fractions  which  are  one
one-thousandth or integral multiples of one one-thousandth of a Preferred Share,
which may, at the election of the Company, be evidenced by depositary receipts),
but in lieu  thereof a cash  payment  will be made,  as  provided  in the Rights
Agreement.



                                       -2-

<PAGE>



         No  holder  of this  Right  Certificate  shall be  entitled  to vote or
receive  dividends  or be deemed for any  purpose  the  holder of the  Preferred
Shares  or of any  other  securities  of the  Company  which  may at any time be
issuable on the  exercise  hereof,  nor shall  anything  contained in the Rights
Agreement or herein be construed to confer upon the holder hereof,  as such, any
of the  rights  of a  stockholder  of the  Company  or any right to vote for the
election  of  directors  or upon any matter  submitted  to  stockholders  at any
meeting thereof,  or to give or withhold consent to any corporate  action, or to
receive notice of meetings or other actions  affecting  stockholders  (except as
provided  in  the  Rights   Agreement),   or  to  receive   dividends  or  other
distributions  or  to  exercise  any  preemptive  or  subscription   rights,  or
otherwise,  until the Right or Rights evidenced by this Right  Certificate shall
have been exercised as provided in the Rights Agreement.

         The Right  Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Rights Agent.

         WITNESS the facsimile  signature of the proper  officers of the Company
and its corporate seal. Dated as of ___________, _______.

[SEAL]                                         CIDCO INCORPORATED
ATTEST:


_________________________                      By___________________________
Name:                                            Name:
Title:                                           Title:


Countersigned

UNITED STATES TRUST COMPANY
     OF NEW YORK


By___________________________
     Authorized Signatory
     Name:
     Title:





                                       -3-

<PAGE>



                    Form of Reverse Side of Right Certificate


                               FORM OF ASSIGNMENT

                   (To be executed by the registered holder if
                    such holder desires to transfer the Right
                                  Certificate.)



                  FOR VALUE RECEIVED __________________________________________
hereby sells, assigns and transfers unto ______________________________________
                  (Please print name and address of transferee)
- -------------------------------------------------------------------------------
this Right Certificate, together with all right, title and interest therein, and
does hereby irrevocably  constitute and appoint _______________________________
Attorney, to  transfer the  within Right Certificate on the books of the within-
named  Company,  with full power of substitution.


Dated: ________________________, 19____


                                                  -------------------------
                                                          Signature


Signature Guaranteed:

                  Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers,  Inc.,  or a  commercial  bank or trust  company  having  an  office or
correspondent in the United States.

- -------------------------------------------------------------------------------

                  The undersigned  hereby certifies that the Rights evidenced by
this Right  Certificate are not beneficially  owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).



                                         -------------------------------
                                                   Signature


<PAGE>



              Form of Reverse Side of Right Certificate - continued

                          FORM OF ELECTION TO PURCHASE

                      (To be executed if holder desires to
                        exercise the Right Certificate.)


To:      CIDCO Incorporated

                  The  undersigned   hereby   irrevocably   elects  to  exercise
_________________________  Rights  represented  by  this  Right  Certificate  to
purchase the Preferred Shares (or other  securities)  issuable upon the exercise
of such Rights and  requests  that  certificates  for such  Preferred  Shares be
issued in the name of:

Please insert social security
or other identifying number


- --------------------------------------------------------------------------------
                         (Please print name and address)
- --------------------------------------------------------------------------------

If such  number of Rights  shall not be all the Rights  evidenced  by this Right
Certificate,  a new Right  Certificate for the balance  remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number


- --------------------------------------------------------------------------------
                         (Please print name and address)
- --------------------------------------------------------------------------------



Date:  ______________, 19


                                             -----------------------------
                                                      Signature


Signature Guaranteed:

                  Signatures must be guaranteed by a member firm of a registered
national securities exchange, a member of the National Association of Securities
Dealers,  Inc.,  or a  commercial  bank or trust  company  having  an  office or
correspondent in the United States.




<PAGE>



              Form of Reverse Side of Right Certificate - continued
- --------------------------------------------------------------------------------


                  The undersigned  hereby certifies that the Rights evidenced by
this Right  Certificate are not beneficially  owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).


                                              ----------------------------
                                                      Signature

- --------------------------------------------------------------------------------


                                     NOTICE


                  The  signature  in  the  foregoing  Forms  of  Assignment  and
Election  must  conform  to the name as  written  upon  the  face of this  Right
Certificate in every particular, without alteration or enlargement or any change
whatsoever.

                  In the event the  certification set forth above in the Form of
Assignment  or the Form of  Election  to  Purchase,  as the case may be,  is not
completed,  the Company and the Rights Agent will deem the  beneficial  owner of
the Rights  evidenced by this Right  Certificate to be an Acquiring Person or an
Affiliate or  Associate  thereof (as defined in the Rights  Agreement)  and such
Assignment or Election to Purchase will not be honored.






<PAGE>



                                                                     Exhibit C


                          SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES


         On January 27, 1997,  the Board of Directors of CIDCO  Incorporated,  a
Delaware  corporation (the "Company") declared a dividend of one preferred share
purchase right (a "Right") for each outstanding share of common stock, par value
$0.01 per share (the "Common Shares"),  of the Company.  The dividend is payable
to all  holders of Common  Shares of record on February  14,  1997 (the  "Record
Date"),  and with  respect  to Common  Shares  issued  thereafter  until the the
earlier to occur of the Distribution Date (as defined below),  the date on which
the Rights are redeemed or exchanged, and the expiration date of the Rights, and
in  certain  circumstances  with  respect  to  Common  Shares  issued  after the
Distribution  Date.  Except as set forth  below,  each  Right,  when it  becomes
exercisable,  entitles the  registered  holder to purchase  from the Company one
one-thousandth of a share of Series A Junior Participating  Preferred Stock, par
value $0.01 per share (the "Preferred  Shares"),  of the Company,  at a price of
$95.00 per one  one-thousandth  of a  Preferred  Share (the  "Purchase  Price"),
subject to adjustment.  The description and terms of the Rights are set forth in
a Rights  Agreement  (the  "Rights  Agreement")  between  the Company and United
States Trust Company of New York, as Rights Agent (the "Rights Agent"), dated as
of January 27, 1997.  The following  description  of the Rights are qualified by
reference to the Rights Agreement.

         Initially, the Rights will be attached to all certificates representing
Common  Shares then  outstanding,  and no separate  Right  Certificates  will be
distributed.  The Rights will  separate from the Common Shares upon the earliest
to occur of (i) ten days following a public  announcement that a person or group
of  affiliated  or associated  persons have  acquired,  or obtained the right to
acquire,  beneficial  ownership of 15% or more of the outstanding  Common Shares
(except  pursuant to a Permitted  Offer,  as hereinafter  defined);  or (ii) ten
business  days (or such  later  date as the Board of  Directors  may  determine)
following the commencement of, or announcement of an intention to make, a tender
offer or exchange  offer the  consummation  of which would result in a person or
group  becoming an Acquiring  Person (as  hereinafter  defined) (the earliest of
such dates being called the "Distribution  Date").  Except for the Grandfathered
Stockholder,  as set forth in the Rights  Agreement,  any person or group  whose
acquisition of Common Shares causes a  Distribution  Date pursuant to clause (i)
above is an  "Acquiring  Person."  The date  that a person or group  becomes  an
Acquiring Person is the "Shares Acquisition Date."

         The Rights Agreement  provides that,  until the Distribution  Date, the
Rights  will be  transferred  with and only with the  Common  Shares.  Until the
Distribution  Date (or earlier  redemption  or  expiration  of the Rights),  new
Common  Share  certificates  issued  after the Record Date upon  transfer or new
issuance  of Common  Shares  will  contain a notation  incorporating  the Rights
Agreement by reference.  Until the Distribution  Date (or earlier  redemption or
expiration of the Rights),  the surrender for transfer of any  certificates  for
Common Shares outstanding as of the


                                     
<PAGE>


Record  Date,  even  without  such  notation or a copy of this Summary of Rights
being  attached  thereto,  will  also  constitute  the  transfer  of the  Rights
associated with the Common Shares  represented by such  certificate.  As soon as
practicable  following the Distribution Date, separate  certificates  evidencing
the  Rights  ("Right  Certificates")  will be mailed to holders of record of the
Common Shares as of the close of business on the Distribution  Date (and to each
initial  record holder of certain  Common  Shares issued after the  Distribution
Date), and such separate Right Certificates alone will evidence the Rights.

         The Rights are not exercisable until the later of the Distribution Date
or the effective  date of a registration  statement  under the Securities Act of
1933,  with respect to the securities  purchasable  upon exercise of the Rights,
and will expire at the close of business on January  27,  2007,  unless  earlier
redeemed or exchanged by the Company as described below.

         In the event  that any  person  becomes  an  Acquiring  Person  (except
pursuant  to a tender or  exchange  offer  which is for all  outstanding  Common
Shares at a price and on terms which a majority of certain  members of the Board
of Directors  determines to be adequate and in the best interest of the Company,
its  stockholders and other relevant  constituencies,  other than such Acquiring
Person, its affiliates and associates (a "Permitted  Offer")),  each holder of a
Right will  thereafter  have the right  (the  "Flip-In  Right") to receive  upon
exercise thereof at the then current exercise price of the Right, that number of
one   one-thousandths   of  a  share  of   Preferred   Shares  (or,  in  certain
circumstances,  other  securities  of the Company)  having a value  (immediately
prior to such  triggering  event) equal to two times the  exercise  price of the
Right.  Notwithstanding  the  foregoing,  following the  occurrence of the event
described above, all Rights that are, or (under certain circumstances  specified
in the Rights Agreement) were, beneficially owned by any Acquiring Person or any
affiliate or associate thereof will be null and void.

         In the event that, at any time following the Shares  Acquisition  Date,
(i)  the  Company  is  acquired  in  a  merger  or  other  business  combination
transaction, or (ii) more than 50% of the Company's (including its Subsidiaries)
assets or earning power is sold or  transferred,  in either case, with or to any
other  person  other  than  the  Company  or one or  more  of its  wholly  owned
Subsidiaries,  then each holder of a Right (except Rights which  previously have
been voided as set forth above) shall  thereafter have the right (the "Flip-Over
Right") to receive,  upon exercise thereof at the then current exercise price of
the Right, that number of common shares of the acquiring company,  or in case of
a sale of assets, the common shares of the person obtaining the greatest portion
of the assets or earning  power  transferred,  having a value equal to two times
the exercise price of the Right. The holder of a Right will continue to have the
Flip-Over  Right whether or not such holder  exercises or surrenders the Flip-In
Right.

         The Purchase Price payable,  and the number of one  one-thousandths  of
Preferred Shares,  common shares or other securities issuable,  upon exercise of
the Rights are subject to adjustment  from time to time to prevent  dilution (i)
in  the  event  of a  stock  dividend  on,  or  a  subdivision,  combination  or
reclassification of, the Preferred Shares, (ii) upon the grant to holders of the
Preferred  Shares of certain  rights or  warrants to  subscribe  for or purchase
Preferred  Shares at a price,



                                       -2-

<PAGE>

or securities  convertible into Preferred Shares with a conversion  price,  less
than the then  current  market price of the  Preferred  Shares or (iii) upon the
distribution to holders of the Preferred  Shares of evidences of indebtedness or
assets (excluding regular quarterly cash dividends) or of subscription rights or
warrants (other than those referred to above).

         The number of outstanding Rights and the number of one  one-thousandths
of a Preferred  Share  issuable  upon exercise of each Right are also subject to
adjustment  in the  event  of a stock  split  of the  Common  Shares  or a stock
dividend  on the  Common  Shares  payable  in  Common  Shares  or  subdivisions,
consolidations or combinations of the Common Shares occurring, in any such case,
prior to the Distribution Date.

         Preferred  Shares  purchasable  upon exercise of the Rights will not be
redeemable.  Each  Preferred  Share will be entitled  to a minimum  preferential
quarterly  dividend  payment  of $10.00 per share,  but will be  entitled  to an
aggregate  dividend  per share of 1,000 times the  dividend  declared per Common
Share. In the event of liquidation,  the holders of the Preferred Shares will be
entitled to a minimum preferential liquidation payment of $1,000 per share, with
the  liquidation  payment to holders of  Preferred  Shares to be 1,000 times the
aggregate  amount,  if any, to be distributed to the Common  Shareholders.  Each
Preferred  Share will have 1,000 votes,  voting together with the Common Shares.
Finally, in the event of any merger, consolidation or other transaction in which
Common Shares are exchanged,  each  Preferred  Share will be entitled to receive
1,000 times the amount received per Common Share.  These rights are protected by
customary antidilution pro visions.

         Because of the nature of the Preferred  Shares'  dividend,  liquidation
and voting  rights,  the value of the one  one-thousandth  of a Preferred  Share
purchasable  upon  exercise of each Right  should  approximate  the value of one
Common Share.

         With certain  exceptions,  no adjustment in the Purchase  Price will be
required until  cumulative  adjustments  require an adjustment of at least 1% in
such Purchase Price. No fractional  Preferred  Shares will be issued (other than
fractions   which  are  one   one-thousandth   or  integral   multiples  of  one
one-thousandth of a Preferred Share,  which may, at the election of the Company,
be evidenced by depositary  receipts) and in lieu thereof, an adjustment in cash
will be made  based on the  market  price of the  Preferred  Shares  on the last
trading day prior to the date of exercise.

         At any time after any person becomes an Acquiring Person,  the Board of
Directors of the Company may exchange  all or part of the then  outstanding  and
exercisable  Rights,  other than Rights that have become void, for Common Shares
of the Company at an exchange ratio of one Common Share per Right.  The Board of
Directors is not  empowered to effect such exchange at any time after any person
(other than the Company,  any  Subsidiary of the Company,  any employee  benefit
plan of the Company,  or any such  Subsidiary,  any entity holding Common Shares
for or pursuant to the terms of any such a plan),  together with all  affiliates
and associates of such person,  becomes the  beneficial  owner of 50% or more of
the Common Shares then outstanding.




                                       -3-

<PAGE>


         At any time prior to the  earlier to occur of (i) a person  becoming an
Acquiring  Person or (ii) the  expiration of the Rights,  the Company may redeem
the Rights in whole, but not in part, at a price of $0.01 per Right,  subject to
adjustment in certain events.

         All of the  provisions  of the Rights  Agreement  may be amended by the
Board of  Directors of the Company  prior to the  Distribution  Date.  After the
Distribution  Date, the provisions of the Rights Agreement may be amended by the
Board in order to cure any ambiguity,  defect or inconsistency,  to make changes
which do not adversely affect the interests of holders of Rights  (excluding the
interests of any  Acquiring  Person),  or,  subject to certain  limitations,  to
shorten or lengthen any time period under the Rights Agreement.

         Until a Right is exercised,  the holder thereof,  as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive  dividends.  While the distribution of the Rights will not
be taxable to stockholders of the Company,  stockholders may, depending upon the
circumstances,  recognize taxable income should the Rights become exercisable or
upon the occurrence of certain events thereafter.

         A copy of the Rights  Agreement has been filed with the  Securities and
Exchange  Commission  as an Exhibit to a  Registration  Statement on Form 8-A. A
copy of the Rights  Agreement is available  free of charge from the Company upon
written  request  made to the  Secretary  of CIDCO  Incorporated,  220  Cochrane
Circle,  Morgan Hill,  California 95037. This summary  description of the Rights
does not purport to be complete and is qualified in its entirety by reference to
the Rights Agreement, which is hereby incorporated herein by reference.




                                       -4-

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