Legal Opinion
Demco v. Doughnut MacH. Corporation
Court of Appeals for the Fourth Circuit
Decided November 30, 1932No. 3287, 3288PublishedCited by 27 opinions
1Opinion of the Court
PARKER, Circuit Judge.
This is an appeal in two patent suits consolidated and heard together in the court below. Appellee sued to restrain alleged infringement of eight patents covering machines for making doughnuts. Three of the patents were abandoned in the trial court and the judge held that there was no infringement as to one of the others. He held, however, that certain claims of Tomlinson patent No. 1,320,662, Bergner patents Nos. 1,492,-541 and 1,665,017 and Nye patent No. 1,599',-916 were valid and infringed; and, from the decree entered granting an injunction and a reference to a<…
2Cases cited13 opinions
- Hailes v. Van WormerSupreme Court of the United States · 1874
- Powers-Kennedy Contracting Corp. v. Concrete Mixing & Conveying Co.Supreme Court of the United States · 1930
- Computing Scale Co. of America v. Automatic Scale Co.Supreme Court of the United States · 1907
- Heald v. RiceSupreme Court of the United States · 1882
- Black & Decker Mfg. Co. v. Baltimore Truck Tire Service Corp.Court of Appeals for the Fourth Circuit · 1930
8 more not listed; retrieve them via the Exa API.
3Cited by27 opinions
- Hutzler Bros. v. Sales Affiliates, Inc.Court of Appeals for the Fourth Circuit · 1947
- Sylvania Industrial Corporation v. Visking CorporationCourt of Appeals for the Fourth Circuit · 1943
- Doughnut MacH. Corporation v. Joe-Lowe CorporationCourt of Appeals for the Fourth Circuit · 1933
- The B.F. Goodrich Company v. United States Rubber CompanyCourt of Appeals for the Fourth Circuit · 1957
- Wheeling Stamping Co. v. Standard Cap & Molding Co.Court of Appeals for the Fourth Circuit · 1946
22 more not listed; retrieve them via the Exa API.