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ROBBINS CO. v. DRESSER INDUSTRIES, INC.

No. 75-2653.

554 F.2d 1289 (1977)

The ROBBINS COMPANY, Plaintiff-Appellee, Cross-Appellant, v. DRESSER INDUSTRIES, INC., Defendant-Appellant, Cross-Appellee.

United States Court of Appeals, Fifth Circuit.

June 27, 1977.

Attorney(s) appearing for the Case

Ralph R. Browning, C. James Bushman, Houston, Tex., John K. DeLay, Jr., Dallas, Tex., for defendant-appellant, cross-appellee.

V. Bryan Medlock, Jr., Dallas, Tex., John O. Graybeal, James R. Uhlir, Seattle, Wash., for plaintiff-appellee, cross-appellant.

Before TUTTLE, GOLDBERG and CLARK, Circuit Judges.

CLARK, Circuit Judge:

Defendant, Dresser Industries, Inc. (Dresser), appeals from the district court's judgment entered pursuant to a jury's finding that Dresser infringed claims 1, 2, and 4 of U.S. Patent No. 3,220,494 of plaintiff, The Robbins Company (Robbins). We reverse on the ground that Robbins's combination patent, which describes a method of "raise" drilling, is obvious and thus invalid under 35 U.S.C. § 103.1

A raise...

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