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RODMAN CHEMICAL CO. v. CHAR PRODUCTS CO.

No. 4802.

72 F.2d 348 (1934)

RODMAN CHEMICAL CO. v. CHAR PRODUCTS CO. et al.

Circuit Court of Appeals, Seventh Circuit.

August 6, 1934.

Attorney(s) appearing for the Case

Jo Baily Brown and Fulton B. Flick, both of Pittsburgh, Pa., for appellant.

George B. Schley, Verne A. Trask, and Thomas P. Jenkins, all of Indianapolis, Ind., for appellees.

Before ALSCHULER, EVANS, and SPARKS, Circuit Judges.

ALSCHULER, Circuit Judge.

The complaint charged infringement of United States patents to Rodman, No. 1,279,160, 1918, and No. 1,372,832, 1921. The answer alleged invalidity of the claims sued on, and denied infringement. The District Court found that the claims were invalid and not infringed by appellees. The appeal challenges the decree with respect only to patent No. 1,279,160.

The patent is in the art of case hardening steel by the dry pack process, wherein...

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