Legal Opinion
Steel & Tubes, Inc. v. General Tube Co.
Court of Appeals for the Third Circuit
Decided October 3, 1932No. Nos. 4750, 4844PublishedCited by 4 opinions
1Opinion of the Court
DAVIS, Circuit Judge.
Im this suit for infringement of claims 4, 5, 10, 14, 17, and 19 of the Johnston patent, No. 1,388,434, for a new and improved method and apparatus for butt-welding thin-gauge tubing, and of claims 3, 5, 6, and 9 of the Johnston patent, No. 1,435,306, for the product of the process, the District Court held both patents valid but limited their application to operations conducted at a speed in excess of thirty feet per minute. Both the plaintiff, Steel & Tubes, Inc., and the defendant, General Tube. Company, appealed to this court. The plaintiff’s appeal relates only to…
2Cases cited6 opinions
- Ensten v. Simon, Ascher & Co.Supreme Court of the United States · 1931
- Thomson Spot Welder Co. v. Ford Motor Co.Supreme Court of the United States · 1924
- Elyria Iron & Steel Co. v. Mohegan Tube Co.Court of Appeals for the Second Circuit · 1925
- Ensten v. Simon, Ascher & Co.Court of Appeals for the Second Circuit · 1930
- Steel & Tubes, Inc. v. Greenpoint Metallic Bed Co.District Court, E.D. New York · 1929
1 more not listed; retrieve them via the Exa API.
3Cited by4 opinions
- National Tube Co. v. Steel & Tubes, Inc.Court of Appeals for the Third Circuit · 1937
- Steel & Tubes, Inc. v. Clayton Mark & Co.District Court, D. Delaware · 1937
- Mesta Mach. Co. v. Federal Machine & Welder Co.Court of Appeals for the Third Circuit · 1940
- Steel & Tubes, Inc. v. National Tube Co.District Court, W.D. Pennsylvania · 1935