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RICHES, PIVER & CO. v. NITRATE AGENCIES CO.

No. 3566.

25 F.2d 860 (1928)

RICHES, PIVER & CO. v. NITRATE AGENCIES CO.

Circuit Court of Appeals, Third Circuit.

Rehearing Denied May 25, 1928.

Attorney(s) appearing for the Case

George H. Mitchell and Lewis J. Doolittle, both of New York City, for appellant.

Stephen H. Philbin and Fish, Richardson & Neave, all of New York City, for appellee.

Before BUFFINGTON, WOOLLEY, and DAVIS, Circuit Judges.

DAVIS, Circuit Judge.

This is an appeal from a decree of the District Court holding invalid United States letters patent No. 1,237,815, issued to George R. Riches and William C. Piver, on August 21, 1917. The patent relates to a process for the manufacture of calcium arsenate, a widely used insecticide, free from "soluble arsenic" or "acid salt." The defenses were invalidity and noninfringement. The District Judge found the...

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