Legal Opinion
Hazeltine Research v. Admiral Corporation
District Court, N.D. Illinois
Decided September 22, 1949No. Civ. A. 48C731PublishedCited by 10 opinions
1Opinion of the Court
IGOE, District Judge.
Findings of Fact
1. This is a suit for infringement of claims 1, 2 and 4 of patent 2,208,374, Lewis, assigned to Plaintiff, Hazeltine Research, Inc., a company engaged in research and development in the radio and television field, against Admiral Corporation, a manufacturer of radio and television receivers. The patent in suit is directed to a portion of a broadcast television receiver circuit.
2. Among the problems encountered in broadcasting and reception of television signals are two with which the paten: in suit is concerned:(a) Maintaining the analysis of the image at…
2Cases cited25 opinions
- Diamond Rubber Co. of New York v. Consolidated Rubber Tire Co.Supreme Court of the United States · 1911
- Sanitary Refrigerator Co. v. WintersSupreme Court of the United States · 1929
- Goodyear Tire & Rubber Co. v. Ray-O-Vac Co.Supreme Court of the United States · 1944
- General Talking Pictures Corp. v. Western Electric Co.Supreme Court of the United States · 1938
- General Talking Pictures Corp. v. Western Electric Co.Supreme Court of the United States · 1939
20 more not listed; retrieve them via the Exa API.
3Cited by10 opinions
- Automatic Radio Mfg. Co., Inc. v. Hazeltine Research, IncSupreme Court of the United States · 1950
- Automatic Radio Manufacturing Co. v. Hazeltine Research, Inc.Supreme Court of the United States · 1950
- Hazeltine Research, Inc. v. Admiral Corp.Court of Appeals for the Seventh Circuit · 1950
- Zero Manufacturing Company, Inc. v. Mississippi Milk Producers AssociationCourt of Appeals for the Fifth Circuit · 1966
- Hazeltine Research, Inc. v. Avco Manufacturing Corporation and the Harry Alter Co., Inc.Court of Appeals for the Seventh Circuit · 1955
5 more not listed; retrieve them via the Exa API.