Legal Opinion
Hazeltine Research, Inc. v. Admiral Corp.
Court of Appeals for the Seventh Circuit
Decided September 18, 1950No. 10058PublishedCited by 49 opinions
1Opinion of the Court
MAJOR, Chief Judge.
Patent No. 2,208,374, entitled “Television Receiving System,” was issued to H. M. Lewis July 16, 1940. Plazeltine Research, Inc. (hereinafter referred to as Hazeltine), assignee of said patent, brought the instant suit against Admiral Corporation (hereinafter referred to as Admiral), charging infringement of claims 1, 2 and 4. The patent, and particularly the claims relied upon, is directed to a portion of a television broadcast receiver. Admiral counterclaimed for a declaratory judgment of invalidity, non-infringement and non-enforcibility because of misuse by Hazeltine.
The…
2Cases cited10 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1949
- Automatic Radio Mfg. Co., Inc. v. Hazeltine Research, IncSupreme Court of the United States · 1950
- 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
5 more not listed; retrieve them via the Exa API.
3Cited by49 opinions
- Eugene A. Wahl and Vibra Screw Feeders, Inc., and Cross-Appellees v. Carrier Manufacturing Co., Inc., and Cross-AppellantCourt of Appeals for the Seventh Circuit · 1975
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- Hunt v. Armour & Co.Court of Appeals for the Seventh Circuit · 1951
- Southern States Equipment Corp. v. Usco Power Equipment Corp. Usco Power Equipment Corp. v. Southern States Equipment CorpCourt of Appeals for the Fifth Circuit · 1953
- Hazeltine Research, Inc. v. Avco Manufacturing Corporation and the Harry Alter Co., Inc.Court of Appeals for the Seventh Circuit · 1955
44 more not listed; retrieve them via the Exa API.