U.S. GYPSUM CO. v. NATIONAL GYPSUM CO.

No. 95-1254.

74 F.3d 1209 (1996)

UNITED STATES GYPSUM COMPANY, Plaintiff-Appellant, v. NATIONAL GYPSUM COMPANY, Defendant-Appellee.

United States Court of Appeals, Federal Circuit.

Rehearing Denied February 27, 1996.


Attorney(s) appearing for the Case

Donald E. Egan, Cook, Egan, McFarron & Manzo, Ltd., of Chicago, Illinois, argued for plaintiff-appellant. With him on the brief were Mark J. Murphy and John M. Lorenzen.

Allen H. Gerstein, Marshall, O'Toole, Gerstein, Murray & Borun, of Chicago, Illinois, argued for defendant-appellee. With him on the brief were Douglass C. Hochstetler and Anthony Nimmo.

Before LOURIE, CLEVENGER, and SCHALL, Circuit Judges.


LOURIE, Circuit Judge.

United States Gypsum Company ("USG") appeals from the decision of the United States District Court for the Northern District of Illinois granting summary judgment of patent invalidity in favor of National Gypsum Company ("National").1 Because the court did not err in granting summary judgment, we affirm.

BACKGROUND

Joint compounds are adhesives used in the construction of building walls and ceilings...

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