Legal Opinion
T. H. Symington & Son, Inc. v. Symington Co.
District Court, D. Maryland
Decided February 8, 1935No. 2208PublishedCited by 4 opinions
1Opinion of the Court
CHESNUT, District Judge.
This case presents the usual type of patent infringement suit in equity. Plaintiff’s patent is for a “spring mechanism” applicable to railroad freight cars. It was issued January 12, 1932, on application of Cyrus Hankins, filed January 24, 1925. Its number is 1,840,506., The defenses are the usual ones, of (1) invalidity of the plaintiff’s patent and (2), non-infringement. A counter-claim yyhich set up an alleged equitable title in the defendant to the. plaintiff’s patent has been withdrawn.
The plaintiff’s patented invention > has never been reduced to…
2Cases cited29 opinions
- Continental Paper Bag Co. v. Eastern Paper Bag Co.Supreme Court of the United States · 1908
- Sanitary Refrigerator Co. v. WintersSupreme Court of the United States · 1929
- Boyden Power-Brake Co. v. Westinghouse Westinghouse v. Boyden Power-Brake Co.Supreme Court of the United States · 1898
- Railway Co. v. SaylesSupreme Court of the United States · 1878
- Deering v. Winona Harvester WorksSupreme Court of the United States · 1894
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3Cited by4 opinions
- T. H. Symington & Son, Inc. v. Symington Co.District Court, D. Maryland · 1935
- Frost Ry. Supply Co. v. T. H. Symington & Son, Inc.District Court, D. Maryland · 1938
- Rogers v. Engelhard Industries, Inc.District Court, D. New Jersey · 1960
- John Wadsworth v. United StatesCourt of Appeals for the Ninth Circuit · 2018