<PAGE>
AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, PURSUANT TO EDGAR, ON JUNE
12, 1997
REGISTRATION NO. 33-98758
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
------------------------
POST-EFFECTIVE
AMENDMENT NO. 1
TO
FORM S-3
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
------------------------
U.S. ROBOTICS CORPORATION
(Exact name of registrant as specified in its charter)
<TABLE>
<S> <C> <C>
DELAWARE 36-3994412
(State or other jurisdiction (I.R.S. Employer
incorporation or organization) Identification
Number)
</TABLE>
8100 N. MCCORMICK BOULEVARD
SKOKIE, ILLINOIS 60076
(847) 982-5010
(Address, including zip code, and telephone number, including
area code, of registrant's principal executive offices)
GEORGE VINYARD, ESQUIRE
8100 N. MCCORMICK BOULEVARD
SKOKIE, ILLINOIS 60076
(847) 982-5010
(Name and address, including zip code, and telephone number,
including area code, of agent for service)
------------------------
COPY TO:
RICHARD S. MILLARD
MAYER, BROWN & PLATT
190 SOUTH LASALLE STREET
CHICAGO, ILLINOIS 60603
(312) 782-0600
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- --------------------------------------------------------------------------------
<PAGE>
The offering described in the Registration Statement has been terminated.
This Post-Effective Amendment is being filed solely to remove from registration
all securities offered in the Registration Statement which remained unsold at
the termination of the offering.
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this post-effective
amendment to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Chicago, State of Illinois, on June 11, 1997.
U.S. ROBOTICS CORPORATION
By: /s/ CASEY COWELL
-----------------------------------------
Casey Cowell
CHAIRMAN AND CHIEF EXECUTIVE OFFICER
II-1
<PAGE>
Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 1 to this Registration Statement has been signed by
the following persons in the capacities indicated on the 11th day of June, 1997.
SIGNATURE TITLE
- ------------------------------ --------------------------
Chairman of the Board and
/s/ CASEY COWELL Chief Executive Officer
- ------------------------------ (Principal Executive
Casey Cowell Officer)
Vice President, Finance
/s/ MARK REMISSONG and Chief Financial
- ------------------------------ Officer (Principal
Mark Remissong Financial Officer)
Vice President and
/s/ STEVEN T. CAMPBELL Controller
- ------------------------------ (Principal Accounting
Steven T. Campbell Officer)
/s/ JOHN MCCARTNEY
- ------------------------------ President, Chief Operating
John McCartney Officer and Director
Executive Vice President,
/s/ JONATHAN N. ZAKIN Business Development and
- ------------------------------ Corporate Strategy, and
Jonathan N. Zakin Director
/s/ JAMES E. COWIE
- ------------------------------ Director
James E. Cowie
/s/ TERENCE M. GRAUNKE
- ------------------------------ Director
Terence M. Graunke
/s/ PETER I. MASON
- ------------------------------ Director
Peter I. Mason
/s/ PAUL G. YOVOVICH
- ------------------------------ Director
Paul G. Yovovich
II-2
