Legal Opinion
A R Inc. v. Electro-Voice, Incorporated
Court of Appeals for the Seventh Circuit
Decided December 28, 1962No. 13822PublishedCited by 50 opinions
1Opinion of the Court
CASTLE, Circuit Judge.
A R Inc., plaintiff-appellant, owner of Villchur Patent No. 2,775,309, relating to sound translating devices, brought suit in the District Court charging ElectroVoice, Incorporated, defendant-appellee, with infringement of the patent. The defendant’s answer and counterclaim denied infringement, asserted invalidity of .the patent for lack of novelty and invention over the prior art, sought a declaratory judgment that all claims of the patent are invalid, and that plaintiff be enjoined from asserting the patent against defendant’s customers.
In response to interrogatories,…
2Cases cited10 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- General Electric Co. v. Wabash Appliance Corp.Supreme Court of the United States · 1938
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- James C. Hobbs v. Wisconsin Power & Light Company and William Powell CompanyCourt of Appeals for the Seventh Circuit · 1957
- Marie Magee and Donald F. Guilliams v. The Coca-Cola Company, Coca-Cola Bottling Co. Of Chicago, Inc. And Chicago Concessions, Inc.Court of Appeals for the Seventh Circuit · 1956
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3Cited by50 opinions
- Brooks Walker v. General Motors Corporation and Les Vogel Chevrolet CompanyCourt of Appeals for the Ninth Circuit · 1966
- United States v. Michael John McGlynn and Kevin John SchantzenCourt of Appeals for the Eighth Circuit · 1982
- Wham-O-Mfg. Co., a Corporation v. Paradise Manufacturing Co., a CorporationCourt of Appeals for the Ninth Circuit · 1964
- American Infra-Red Radiant Co. v. Lambert Industries, Inc.Court of Appeals for the Eighth Circuit · 1966
- La Salle Street Press, Inc. v. McCormick and Henderson, Inc.Court of Appeals for the Seventh Circuit · 1971
45 more not listed; retrieve them via the Exa API.