Legal Opinion

Stratoflex, Inc. v. Aeroquip Corporation

Court of Appeals for the Federal Circuit

Decided July 25, 1983No. Appeal 83-587PublishedCited by 512 opinions

1Opinion of the Court

MARKEY, Chief Judge.

Appeal from a judgment of the District Court for the Eastern District of Michigan, 561 F.Supp. 618, declaring Claims 1, 3, 4, 6, and 7 of U.S. Patent No. 3,473,087 to Win-ton Slade (’087 patent) invalid and not infringed. We affirm.

When Stratoflex filed suit seeking a declaration of invalidity and non-infringement of the ’087 patent, Aeroquip, as assignee, counterclaimed for infringement of claims 1, 3, 4, 6, and 7. After a non-jury trial, Judge Boyle declared those claims invalid and found them not infringed. 1

II. Background

A. The Technology

Stratoflex and Aeroquip…

2Cases cited14 opinions

  1. Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
  2. Orthopedic Equipment Company, Inc., and Marriott Corporation, and Cross-Appellees v. The United States, and Cross-AppellantCourt of Appeals for the Federal Circuit · 1983
  3. In Re Howard SernakerCourt of Appeals for the Federal Circuit · 1983
  4. In re WoodCourt of Customs and Patent Appeals · 1979
  5. Solder Removal Co. v. United States International Trade CommissionCourt of Customs and Patent Appeals · 1978

9 more not listed; retrieve them via the Exa API.

3Cited by512 opinions

  1. Mingus Constructors, Inc. v. The United StatesCourt of Appeals for the Federal Circuit · 1987
  2. American Hoist & Derrick Company, Cross-Appellee v. Sowa & Sons, Inc., Cross-AppellantCourt of Appeals for the Federal Circuit · 1984
  3. Hybritech Incorporated v. Monoclonal Antibodies, Inc.Court of Appeals for the Federal Circuit · 1986
  4. Avia Group International, Inc., (Formerly Pensa, Inc.) v. L.A. Gear California, Inc.Court of Appeals for the Federal Circuit · 1988
  5. The Perkin-Elmer Corporation, a Corporation of New York v. Computervision Corporation, a Corporation of DelawareCourt of Appeals for the Federal Circuit · 1984

507 more not listed; retrieve them via the Exa API.

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