Carnegie Steel Co. v. Cambria Iron Co.
Supreme Court of the United States
CERTIORARI TO THE CIRCUIT COURT OF APPEALS FOR THE THIRD CIRCUIT. This was a bill in equity filed in the Circuit Court for the Western District of Pennsylvania by the Carnegie Steel Company against the Cambria Iron Company,, for an injunction and ■ the recovery of damages for the infringement of letters patent No. 404,414, issued June 4,1889, to William R. Jones, of whom plaintiff was the assignee, for á “ method of mixing molten pig metal.”
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CERTIORARI TO THE CIRCUIT COURT OF APPEALS FOR THE THIRD CIRCUIT. This was a bill in equity filed in the Circuit Court for the Western District of Pennsylvania by the Carnegie Steel Company against the Cambria Iron Company,, for an injunction and ■ the recovery of damages for the infringement of letters patent No. 404,414, issued June 4,1889, to William R. Jones, of whom plaintiff was the assignee, for á “ method of mixing molten pig metal.” In his specification the patentee declares that the— “ Primary object of my invention is to provide means for rendering the product of steel -works…
1Opinion of the CourtJustice Brown
Steel is a product, or, perhaps, more accurately, a species of iron, refined of some of its grosser elements, intermediate in the amount of its carbon between wrought and cast iron, and tempered to a hardness which enables.it to take a cutting edge, a toughness sufficient to bear a heavy strain, an elasticity which adapts it for springs and other articles requiring resiliency, as well as a susceptibility to polish, which makes it useful for ornamental and artistic purposes.
Big iron, which was the original basis for the manufacture of all iron and steel, is made by the reduction of iron ore in…
2Cases cited12 opinions
- Loom Co. v. HigginsSupreme Court of the United States · 1882
- Seymour v. OsborneSupreme Court of the United States · 1871
- Corning v. BurdenSupreme Court of the United States · 1854
- Sessions v. RomadkaSupreme Court of the United States · 1892
- Risdon Iron & Locomotive Works v. MedartSupreme Court of the United States · 1895
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- Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp.Supreme Court of the United States · 1935
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