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NATIONAL PRESSURE COOKER CO. v. ALUMINUM GOODS MFG. CO.

No. 9263.

162 F.2d 26 (1947)

NATIONAL PRESSURE COOKER CO. v. ALUMINUM GOODS MFG. CO.

Circuit Court of Appeals, Seventh Circuit.

Rehearing Denied July 16, 1947.

Attorney(s) appearing for the Case

Charles L. Byron, Howard W. Hodgkins, and Gerrit P. Groen, all of Chicago, Ill., for appellant.

Geo. I. Haight and Edward A. Haight, both of Chicago, Ill., and Samuel H. Maslon, of Minneapolis, Minn., for appellee.

Before MAJOR, KERNER and MINTON, Circuit Judges.

MAJOR, Circuit Judge.

This is a patent infringement suit based upon the Wittenberg patent 2,218,188, issued October 15, 1940 to plaintiff, entitled "Pressure Cooker." Both plaintiff and defendant are engaged in the manufacture of pressure cookers and other cooking utensils. The patent contains six claims. Plaintiff's suit was predicated upon claims 1 and 2. The defendant counter-claimed, alleging that all of the claims were void, but if valid were not infringed. The...

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