Legal Opinion
Ace Patents Corp. v. Exhibit Supply Co.
Court of Appeals for the Seventh Circuit
Decided March 12, 1941No. Nos. 7402-7404PublishedCited by 11 opinions
1Opinion of the Court
SPARKS, Circuit Judge.
Appellee by three separate actions charged the three appellants with infringement of the Nelson patent, No. 2,109,678. The causes were consolidated for trial in the District Court, and they are likewise consolidated for the purposes of these appeals. *350The patent was issued March 1, 1938, on an application filed January 12, 1937. The defenses were anticipation by prior patents and publications; a prior knowledge, use, and sale; non-invention in view of the prior art; and non-infringement. Each of the decrees found the Nelson patent valid and infringed, and ordered an…
2Cases cited4 opinions
- Gray Telephone Pay Station Co. v. Baird Mfg. Co.Court of Appeals for the Seventh Circuit · 1909
- Chicago Lock Co. v. TratschCourt of Appeals for the Seventh Circuit · 1934
- Highway Appliances Co. v. American Concrete Expansion Joint Co.Court of Appeals for the Seventh Circuit · 1937
- Libbey Glass Mfg. Co. v. Albert Pick Co.Court of Appeals for the Seventh Circuit · 1933
3Cited by11 opinions
- Exhibit Supply Co. v. Ace Patents Corp.Supreme Court of the United States · 1942
- Union Carbide & Carbon Corp. v. Graver Tank & Mfg. Co., Inc.Court of Appeals for the Seventh Circuit · 1952
- Dixie Cup Co. v. Paper Container Mfg. Co.Court of Appeals for the Seventh Circuit · 1948
- Harold M. Lewis v. Avco Manufacturing Corporation and the Harry Alter Co., Inc.Court of Appeals for the Seventh Circuit · 1956
- Deere & Co. v. International Harvester Co.District Court, S.D. Illinois · 1978
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