Legal Opinion
Stewart-Warner Corp. v. Universal Lubricating Systems, Inc.
District Court, W.D. Pennsylvania
Decided February 4, 1938No. 3306PublishedCited by 2 opinions
1Opinion of the Court
SCHOONMAKER, District Judge.
This is a patent suit for alleged infringement of two patents, i. e., Nelson patent, No. 1,377,023, of May 3, 1921 (filed June 29, 1920), and Hundemer patent, No. 1,619,126, of March 1, 1927 (filed February 8, 1926). They both relate to lubricating devices, commonly called “Grease Guns,” which are of common use in the lubrication of automobiles. The Hundemer patent is for an improvement in device shown in the Nelson patent Claim 2 Of both patents are in suit.
Claim 2 of the Nelson patent is as follows: “2. A lubricating device comprising a cylinder having a bore and…
2Cases cited12 opinions
- Motion Picture Patents Co. v. Universal Film Manufacturing Co.Supreme Court of the United States · 1917
- Keystone Bridge Co. v. Phoenix Iron Co.Supreme Court of the United States · 1877
- Minerals Separation, Ltd. v. Butte & Superior Mining Co.Supreme Court of the United States · 1919
- American Fibre-Chamois Co. v. Buckskin-Fibre Co.Court of Appeals for the Sixth Circuit · 1896
- Friend v. Burnham & Morrill Co.Court of Appeals for the First Circuit · 1932
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3Cited by2 opinions
- Gibbs v. Emerson Electric Mfg. Co.District Court, W.D. Missouri · 1940
- Stewart-Warner Corp. v. Universal Lubricating Systems, Inc.Court of Appeals for the Third Circuit · 1939