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PERMUTIT CO. v. GRAVER CORP.

No. 3.

284 U.S. 52 (1931)

PERMUTIT CO. v. GRAVER CORPORATION.

Supreme Court of United States.

Decided November 23, 1931.

Attorney(s) appearing for the Case

Mr. Drury W. Cooper, with whom Messrs. Graham Sumner, George A. Chritton, and Allan C. Bakewell were on the brief, for petitioner.

Mr. Charles L. Byron, with whom Mr. George L. Wilkinson was on the brief, for respondent.

MR. JUSTICE BRANDEIS 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...

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