MIDLAND STEEL PRODUCTS CO. v. CLARK EQUIPMENT CO.

No. 10781.

174 F.2d 541 (1949)

MIDLAND STEEL PRODUCTS CO. v. CLARK EQUIPMENT CO.

United States Court of Appeals Sixth Circuit.

May 31, 1949.


Attorney(s) appearing for the Case

F. O. Richey, Cleveland, Ohio (H. F. McNenny, Cleveland, Ohio, on the brief; Richey & Watts, Cleveland, Ohio, and Smith, Strawhecker & Wetmore, Grand Rapids, Mich., of counsel), for appellant.

John A. Dienner and Edward C. Grelle, Chicago, Ill. (Brown, Jackson, Boettcher & Dienner, Chicago, Ill., Walter E. Schirmer, Buchanan, Mich., and Frank E. Liverance, Jr., Grand Rapids, Mich., of counsel), for appellee.

Before HICKS, Chief Judge, and SIMONS and ALLEN, Circuit Judges.


SIMONS, Circuit Judge.

The appellant sought remedies for alleged infringement of four patents and appeals from a decree denying it relief. The patents lie in the welding art, were all granted to Riemenschneider and assigned to the appellant. The first is No. 1,810,- 112 for a process for welding metal tubing, granted June 16, 1931 upon an application filed August 6, 1930. This patent discloses the inventor's basic concept...

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