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CARPET SEAMING TAPE LICENSING v. BEST SEAM INC.

Nos. 77-3721, 77-3722.

616 F.2d 1133 (1980)

CARPET SEAMING TAPE LICENSING CORPORATION, Plaintiff-Appellant, v. BEST SEAM INCORPORATED, Defendant-Appellee. CARPET SEAMING TAPE LICENSING CORPORATION, Plaintiff-Appellant, v. VECTRON INDUSTRIES, INC. and Eugene J. Tasse, Defendants-Appellees.

United States Court of Appeals, Ninth Circuit.

April 9, 1980.

Attorney(s) appearing for the Case

Peter R. Taft, Munger, Tolles & Rickershause, Los Angeles, Cal., argued, for plaintiff-appellant; Laurence H. Pretty, Fulwider, Patton, Rieber, Lee & Utecht, Los Angeles, Cal., on brief.

William H. Pavitt, Jr., Smyth, Pavitt, Siegemond, Jones & Martella, Los Angeles, Cal., for defendants-appellees.

Before CHAMBERS and TANG, Circuit Judges, and ORRICK, District Judge.

ORRICK, District Judge:

In this case involving the validity and enforceability of a number of patents on products and processes used in seaming carpets, at the close of the plaintiff's case the trial judge held invalid a patent which was not in suit on the grounds of fraud against the Patent Office. The trial court then proceeded to declare invalid three other patents on the basis of the doctrine of unclean hands deriving...

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