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W. L. GORE & ASSOCIATES, INC. v. OAK MATERIALS GROUP, INC.

Civ. A. No. 75-180.

424 F.Supp. 700 (1976)

W. L. GORE & ASSOCIATES, INC., Plaintiff, v. OAK MATERIALS GROUP, INC., Defendant.

United States District Court, D. Delaware.

November 16, 1976.

Attorney(s) appearing for the Case

E. A. Uebler of W. L. Gore & Associates, Inc., Newark, Del., for plaintiff; C. Walter Mortenson, Wilmington, Del., Marcus B. Finnegan, Brian G. Brunsvold of Finnegan, Henderson, Farabow & Garrett, Washington, D. C., of counsel.

Charles S. Crompton, Jr., of Potter, Anderson & Corroon, Wilmington, Del., for defendant; John B. Pegram of Davis, Hoxie, Faithful & Hapgood, New York City, of counsel.

CALEB M. WRIGHT, Senior District Judge.

Plaintiff, W. L. Gore & Associates, Inc.1 filed this action against defendant Oak Materials Group, Inc. in 1975,2 alleging infringement of its U. S. Patent Number 3,664,915 covering expanded, extruded, unsintered polytetrafluoroethylene ("PTFE") tape. Defendant answered, denying infringement and asserting affirmative defenses of invalidity, fraud and estoppel. In...

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