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AMERICAN HOME PRODUCTS CORP. v. LOCKWOOD MFG. CO.

Nos. 72-2202, 72-2203.

483 F.2d 1120 (1973)

AMERICAN HOME PRODUCTS CORP., Plaintiff-Appellant-Cross-Appellee, v. LOCKWOOD MANUFACTURING CO., Defendant-Appellee-Cross-Appellant.

United States Court of Appeals, Sixth Circuit.

Decided August 28, 1973.

Attorney(s) appearing for the Case

George P. McAndrews, Chicago, Ill., for appellant; Timothy J. Malloy, Molinare, Allegretti, Newitt & Witcoff, Chicago, Ill., and Thomas Y. Allman, Taft, Stettinius & Hollister, Cincinnati, Ohio, on brief.

Richard H. Evans, Cincinnati, Ohio, for appellee; Truman A. Herron, John D. Poffenberger, Wood, Herron & Evans, Cincinnati, Ohio, on brief.

Before EDWARDS, PECK and LIVELY, Circuit Judges.

JOHN W. PECK, Circuit Judge.

This is an appeal and a cross-appeal from a judgment of the District Court which found that the two patents in suit were valid and infringed, but that the plaintiff was guilty of laches and therefore could not prosecute the suit. The plaintiff appealed from the finding of laches, and the defendant has cross-appealed from the findings of validity and infringement.

The predominant patent is a process patent (#2,687,994) which concerns...

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