Legal Opinion
Hazeltine Research, Inc. v. Dage Electric Company, Inc.
Court of Appeals for the Seventh Circuit
Decided November 16, 1959No. 12490PublishedCited by 20 opinions
1Opinion of the Court
PARKINSON, Circuit Judge.
Plaintiff-appellant, Hazeltine Research, Inc. (Hazeltine), brought this action for infringement of its Patent No. 2,540,012 against Dage Electric Company, Inc. (Dage), defendant-appellee. Dage counterclaimed for a declaratory judgment of invalidity and noninfringement. The District Court found the patent invalid and dismissed the complaint, but also found the patent, if valid, to have been infringed. This appeal followed.
The patent in suit was issued, on January 30, 1951, to Hazeltine, as assignee of one Octavio M. Salati, the inventor, on application of Salati filed…
2Cases cited11 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Loom Co. v. HigginsSupreme Court of the United States · 1882
- Carnegie Steel Co. v. Cambria Iron Co.Supreme Court of the United States · 1902
- Radio Corp. of America v. Radio Engineering Laboratories, Inc.Supreme Court of the United States · 1934
- Mumm v. Jacob E. Decker & SonsSupreme Court of the United States · 1937
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3Cited by20 opinions
- In Re ComiskeyCourt of Appeals for the Federal Circuit · 2009
- Devex Corporation v. General Motors CorporationCourt of Appeals for the Seventh Circuit · 1963
- King-Seeley Thermos Co. v. Tastee Freez Industries, Inc.Court of Appeals for the Seventh Circuit · 1966
- In Re ComiskeyCourt of Appeals for the Federal Circuit · 2007
- The Ekco Products Company, Inc. v. Chicago Metallic Manufacturing CompanyCourt of Appeals for the Seventh Circuit · 1963
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