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GRISWOLD v. OIL CAPITAL VALVE CO.

No. 8194.

375 F.2d 532 (1966)

Donald G. GRISWOLD and Cla-Val Co., Inc., Appellants, v. OIL CAPITAL VALVE CO., Aeroparts Manufacturing Co., Robert E. Radford, and Dorothy Joyce Radford, as an individual and as Trustee for Joseph Britton Radford, Janice Joyce, Radford, Robert E. Radford, Jr., Appellees.

United States Court of Appeals Tenth Circuit.

Rehearing Denied May 22, 1967.

Attorney(s) appearing for the Case

Harry W. F. Glemser, of Bacon & Thomas, Washington, D. C. (John R. Richards, of Houston, Klein & Davidson, Tulsa, Okl., of counsel, with him on the brief), for appellants.

William S. Dorman, Tulsa, Okl. (James G. Davidson, Tulsa, Okl., with him on the brief), for appellees.

Before HILL, SETH and HICKEY, Circuit Judges.

SETH, Circuit Judge.

This appeal involves the validity of two patents. The appellants, plaintiffs below, brought an action for infringement of two patents against the appellees. The appellees, defendants below, then sought a declaratory judgment that appellants' patents were invalid and not infringed, and sought damages from the appellants for unfair competition and violation of the federal antitrust statutes.

The trial court found the patents invalid, and...

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