Pittsburgh Iron & Steel Foundries Co. v. Seaman-Sleeth Co.
Court of Appeals for the Third Circuit
Appeal from the District Court of the United States for the Western District of Pennsylvania; Charles P. Orr, Judge. Suit in equity by the Pittsburgh Iron & Steel Foundries Company against the Seaman-Sleeth Company. Decree for defendant, and complainant appeals.
1Opinion of the Court
WOOLLEY, Circuit Judge.
The bill charges infringement of Letters Patent No. 1,071,364, issued August 26, 1913, to James Ramsey Speer and William L. Forster, assignors of the plaintiff, for “Alloy of Iron.” The defenses are invalidity and non-infringement. The District Court found for the defendant on both issues and dismissed the bill. 236 Fed. 756.” The plaintiff took this appeal.
*706[ 1 ] The case has to do with an alloy of iron, which, in addition to iron, contains seven ingredients in small and varying proportions. They are carbon, silicon, chromium, nickel, phosphorus, manganese and sulfur.…
2Cases cited1 opinion
- Pittsburgh Iron & Steel Foundries Co. v. Seaman-Sleeth Co.District Court, W.D. Pennsylvania · 1916
3Cited by29 opinions
- American Stainless Steel Co. v. Ludlum Steel Co.Court of Appeals for the Second Circuit · 1923
- Western Willite Co. v. Trinidad Asphalt Mfg. Co.Court of Appeals for the Eighth Circuit · 1926
- General Electric Co. v. De Forest Radio Co.Court of Appeals for the Third Circuit · 1928
- International Nickel Company v. Ford Motor CompanyDistrict Court, S.D. New York · 1958
- Bethlehem Steel Co. v. Churchward International Steel Co.Court of Appeals for the Third Circuit · 1920
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