Legal Opinion
Cts Corporation v. Piher International Corporation and Piher Sociedad Anonima
Court of Appeals for the Seventh Circuit
Decided March 22, 1976No. 75--1100PublishedCited by 31 opinions
1Opinion of the Court
STEVENS, Circuit Judge.
Appellants contend that the district court erroneously rejected their attacks on the validity of the ’604 1 and ’285 2 patents on variable resistance controls and erroneously found that their “PT— 15” trimmer infringed the former patent. The ’604 patent discloses a flared bearing used as a dust excluding seal of an aperture in the housing enclosing the control. The ’285 patent describes a mechanical assembly which uses a metallic collector — an essential component of the control — as the base of the housing.
The principal issues on appeal are (1) whether one of…
2Cases cited11 opinions
- McClain v. OrtmayerSupreme Court of the United States · 1891
- Popeil Brothers, Inc. v. Schick Electric, Inc.Court of Appeals for the Seventh Circuit · 1975
- Amphenol Corporation, a Corporation of Delaware v. General Time Corporation, a Corporation of DelawareCourt of Appeals for the Seventh Circuit · 1968
- Dart Industries, Inc. v. E. I. Du Pont De Nemours and CompanyCourt of Appeals for the Seventh Circuit · 1973
- Frantz Manufacturing Company, and v. Phenix Manufacturing Company, Inc., AndCourt of Appeals for the Seventh Circuit · 1972
6 more not listed; retrieve them via the Exa API.
3Cited by31 opinions
- The Perkin-Elmer Corporation, a Corporation of New York v. Computervision Corporation, a Corporation of DelawareCourt of Appeals for the Federal Circuit · 1984
- Raytheon Company, Appellee/cross-Appellant v. Roper Corporation, Appellant/cross-AppelleeCourt of Appeals for the Federal Circuit · 1983
- Umc Electronics Company v. The United States, Cross-AppellantCourt of Appeals for the Federal Circuit · 1987
- United States v. John SinclairCourt of Appeals for the Seventh Circuit · 1996
- General Electric Co. v. United StatesUnited States Court of Claims · 1981
26 more not listed; retrieve them via the Exa API.