Legal Opinion
Permutit Co. v. Graver Corp.
Supreme Court of the United States
Decided November 23, 1931No. 3PublishedCited by 173 opinions
1Opinion of the Court
Mr. Justice Brandéis
delivered the opinion of the Court.
The Permutit Company is the owner of Gans Patent No. 1,195,923, for an apparatus for softening water, applied for August 5, 1911 and granted August 22, 1916. It brought, on February 23, 1928, 'this suit in the federal court for northern Illinois, against Graver Corporation, to enjoin infringement of Claims 1 and 5. The defendant denied both the validity of the patent and the infringement. The District Court held both claims'invalid, 37 F. (2d) 385. The Circuit Court of Appeals for the Seventh Circuit affirmed that decision; and also held…
2Cases cited20 opinions
- Seymour v. OsborneSupreme Court of the United States · 1871
- Alexander Milburn Co. v. Davis-Bournonville Co.Supreme Court of the United States · 1926
- Merrill v. YeomansSupreme Court of the United States · 1877
- Keystone Bridge Co. v. Phoenix Iron Co.Supreme Court of the United States · 1877
- McCarty v. Lehigh Valley RailroadSupreme Court of the United States · 1895
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3Cited by173 opinions
- Autogiro Company of America v. The United StatesUnited States Court of Claims · 1967
- General Electric Co. v. Wabash Appliance Corp.Supreme Court of the United States · 1938
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1940
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- LizardTech, Inc. v. Earth Resource Mapping, Inc.Court of Appeals for the Federal Circuit · 2005
168 more not listed; retrieve them via the Exa API.