Legal Opinion
Perfect Circle Corp. v. Hastings Manufacturing Co.
District Court, W.D. Michigan
Decided June 17, 1958No. Civ. A. 2011PublishedCited by 4 opinions
1Opinion of the Court
STARR, Chief Judge.
In its complaint in this case plaintiff alleged that it manufactured and sold piston rings known as Chrome Oil Stopper rings, which defendant claimed infringed its patent No. 2,565,042 issued August 21, 1951, on application filed May 17, 1948. Plaintiff denied that its rings infringed defendant’s patent and alleged that all claims of the patent were invalid. It asked for a declaratory judgment (28 U.S.C.A. §§ 2201, 2202) determining defendant’s patent to be invalid and not infringed and also for costs of suit and attorney fees. Defendant answered, alleging that plaintiff’s…
2Cases cited44 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- General Electric Co. v. Wabash Appliance Corp.Supreme Court of the United States · 1938
- Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp.Supreme Court of the United States · 1935
- Halliburton Oil Well Cementing Co. v. WalkerSupreme Court of the United States · 1946
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3Cited by4 opinions
- United States v. SantoroDistrict Court, E.D. New York · 1986
- Struthers Scientific & International Corporation v. Rappl & Hoenig Co., Inc.Court of Appeals for the Second Circuit · 1972
- Barrott v. Drake Casket Co.District Court, W.D. Michigan · 1960
- Halstead v. Globe Hoist Co.District Court, S.D. California · 1964