Legal Opinion
Langsett v. Marmet Corporation
District Court, W.D. Wisconsin
Decided June 5, 1964No. Civ. A. 3449PublishedCited by 2 opinions
1Opinion of the Court
RABIN O VITZ, District Judge.
This is a patent infringement action. Victor M. Langsett, a resident of Illinois, is trustee of the Kessler patent. Kesko Products, Inc., is the exclusive licensee of the Kessler patent. Kesko is an Indiana corporation. Marmet Corporation is a Wisconsin corporation, having its principal place of business in Wausau, Wisconsin. Letters Patent, Number 2,-654,920, were issued to the late Ward P.. Kessler on October 13, 1953.
Defendant denied infringement, and alleged that the patent in suit is invalid because the patent was anticipated by the prior art; that it was…
2Cases cited45 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Boyden Power-Brake Co. v. Westinghouse Westinghouse v. Boyden Power-Brake Co.Supreme Court of the United States · 1898
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- A R Inc. v. Electro-Voice, IncorporatedCourt of Appeals for the Seventh Circuit · 1962
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3Cited by2 opinions
- Bergstrom v. Sears, Roebuck and Co.District Court, D. Minnesota · 1978
- Envirotech Corp. v. Westech Engineering, Inc.District Court, D. Utah · 1989