Legal Opinion
Steel & Tubes, Inc. v. Clayton Mark & Co.
District Court, D. Delaware
Decided July 30, 1937No. 1061PublishedCited by 3 opinions
1Opinion of the Court
NIELDS, District Judge.
This is a patent infringement suit of Steel & Tubes,-Inc, plaintiff against Clayton Mark & Co, defendant. The bill ,of complaint charges defendant with infringement of two letters patent.
1. Patent No. 1,388,434, granted August 23, 1921, to Gustav V. Johnston for “Meth-' od & Apparatus for Butt-Welding Thin-Gage Tubing,” with claims 1 and 2 in suit.
2. Patent No. 1,611,875, granted December 28, 1926, to Harry Belmont for “Welding Apparatus” with claims 1 and 2 in suit.
Johnston patent, No. 1,388,434, has been repeatedly held valid and infringed. (See footnote 1.) Belmont…
2Cases cited21 opinions
- McClain v. OrtmayerSupreme Court of the United States · 1891
- Tilghman v. ProctorSupreme Court of the United States · 1881
- Carnegie Steel Co. v. Cambria Iron Co.Supreme Court of the United States · 1902
- Merrill v. YeomansSupreme Court of the United States · 1877
- Ensten v. Simon, Ascher & Co.Supreme Court of the United States · 1931
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3Cited by3 opinions
- Commonwealth Of Pennsylvania v. BrownCourt of Appeals for the Third Circuit · 1967
- Pennsylvania v. BrownCourt of Appeals for the Third Circuit · 1967
- Finkelstein v. S. H. Kress & Co.Court of Appeals for the Second Circuit · 1940