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ENVIROTECH CORP. v. WESTECH ENGINEERING, INC.

Civ. No. 86-C-0671A.

713 F.Supp. 372 (1989)

ENVIROTECH CORPORATION, Plaintiff, v. WESTECH ENGINEERING, INC., et al., Defendants.

United States District Court, D. Utah, C.D.

May 18, 1989.

Attorney(s) appearing for the Case

William S. Britt of Trask, Britt & Rossa, Salt Lake City, Utah, for plaintiff.

Earl D. Tanner, Sr. of Tanner, Bowen & Tanner, and Richard F. Bojanowski, Salt Lake City, Utah, for defendants.

MEMORANDUM OPINION

(Under Rule 52(a) — In Lieu of Findings of Fact and Conclusions of Law)

ALDON J. ANDERSON, Senior District Judge.

The defendants in this patent infringement action maintain that the plaintiff's patent is invalid because the invention it covers was "on sale" more than a year before the date on which the patent application was filed. The defendants raised this issue of "on sale" bar by way of a motion for partial summary...

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