BLAW-KNOX COMPANY v. I. D. LAIN COMPANY

No. 11591.

230 F.2d 373 (1956)

BLAW-KNOX COMPANY, Plaintiff-Appellant, v. I. D. LAIN COMPANY (Inc.), Defendant-Appellee.

United States Court of Appeals Seventh Circuit.

February 27, 1956.


Attorney(s) appearing for the Case

Walter J. Blenko, Pittsburgh, Pa., Paul W. Gordon, Springfield, Ill., William H. Parmelee, Pittsburgh, Pa., William Henry Venable, Pittsburgh, Pa., of counsel, for appellant.

Otis A. Earl, Kalamazoo, Mich., Arthur M. Fitzgerald, Springfield, Ill., Austin A. Webb, Kalamazoo, Mich., of counsel, for appellee.

Before DUFFY, Chief Judge, and LINDLEY and SWAIM, Circuit Judges.


LINDLEY, Circuit Judge.

Plaintiff appeals from a judgment declaring invalid all claims of its patent to Bushnell, its assignor, number 2,361,377, applied for September 23, 1941, allowed October 31, 1944, on which it had brought suit against defendant for infringement. The Court found, further, that if the patent were valid, it would be infringed by the device used by defendant. There is no attack upon the latter finding, but plaintiff, on appeal, questions the judgment...

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