Legal Opinion
Permutit Co. v. Graver Corporation
Court of Appeals for the Seventh Circuit
Decided October 20, 1930No. 4390PublishedCited by 12 opinions
1Opinion of the Court
EVANS, Circuit Judge.
This appeal presents for determination the validity, and appellee’s infringement, of claims 1 and 5 of the Gans patent, No. 1,195,-923 covering an apparatus “for Softening of Water.” The District Court found both claims invalid and dismissed the suit.
The Gans patent has been before the courts on numerous occasions. The two claims in question (1 and 5) have been upheld by two Circuit Courts of Appeal. 279 F. 713; 13 F. (2d) 454. They have also been sustained by three District Courts, but only two opinions have been reported. 292 F. 239; 274 F. 937. The same claims have…
2Cases cited13 opinions
- Leeds & Catlin Co. v. Victor Talking MacHine Co.Supreme Court of the United States · 1909
- Permutit Co. v. WadhamCourt of Appeals for the Sixth Circuit · 1926
- General Electric Co. v. AlexanderCourt of Appeals for the Second Circuit · 1922
- Permutit Co. v. Harvey Laundry Co.Court of Appeals for the Second Circuit · 1922
- Acme Acetylene Appliance Co. v. Commercial Acetylene Co.Court of Appeals for the Sixth Circuit · 1911
8 more not listed; retrieve them via the Exa API.
3Cited by12 opinions
- American Infra-Red Radiant Co. v. Lambert Industries, Inc.Court of Appeals for the Eighth Circuit · 1966
- City of Milwaukee v. Activated Sludge, Inc.Court of Appeals for the Seventh Circuit · 1934
- Bendix Corp. v. Balax, Inc.Court of Appeals for the Seventh Circuit · 1970
- Reeves Brothers, Inc. v. US Laminating Corp.District Court, E.D. New York · 1968
- Carter Products, Inc. v. Colgate-Palmolive Co.District Court, D. Maryland · 1955
7 more not listed; retrieve them via the Exa API.