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HENRY MANUFACTURING CO. INC. v. COMMERCIAL FILTERS CORP.

No. 71-1456.

489 F.2d 1008 (1972)

HENRY MANUFACTURING CO., INC., Plaintiff-Appellant, v. COMMERCIAL FILTERS CORPORATION, Defendant-Appellee.

United States Court of Appeals, Seventh Circuit.

Decided November 8, 1972.

Attorney(s) appearing for the Case

Barratt O'Hara, Chicago, Ill., for plaintiff-appellant.

John L. Murphy, Crim. Div., Dept. of Justice, Washington, D. C., for defendant-appellee.

Before SWYGERT, Chief Judge, and CUMMINGS and SPRECHER, Circuit Judges.

CUMMINGS, Circuit Judge.

After a full trial the district court, D. C., 350 F.Supp. 1015, entered judgment for the defendant and dismissed this patent infringement suit, holding that the patent sued upon was invalid for obviousness and that in any event the patent was not infringed. This appeal followed.

On November 25, 1958, patent No. 2,861,688 was issued to Harold H. Harms for his liquid clarification system. After two...

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