|
|
Mineral Separation Corp. v. Magma Copper Co., 280 U.S. 400 (1930)
Contents:
Show Summary
Hide Summary
General SummaryThis case is from a collection containing the full text of over 16,000 Supreme Court cases from 1793 to the present. The body of Supreme Court decisions are, effectively, the final interpretation of the Constitution. Only an amendment to the Constitution can permanently overturn an interpretation and this has happened only four times in American history.
Mineral Separation Corp. v. Magma Copper Co., 280 U.S. 400 (1930)
Mineral Separation Corp. v. Magma Copper Co. No. 71 Argued January 9, 1930 Decided February 24, 1930 280 U.S. 400
CERTIORARI TO THE CIRCUIT COURT OF APPEALS
FOR THE FIRST CIRCUIT
Syllabus
1. The effect of a patent as a disclosure depends on what is made known by the specification, and is not limited to the precise scope of the claims. P. 402.
2. Patent No. 835, 120, of the Minerals Separation, Ltd. (sustained by this Court, 242 U.S. 261; 250 U.S. 336), disclosed the general fact that oils and other substances having a preferential affinity for the metalliferous particles in ores, can be used to separate them, in a froth, from the gangue by mixing such substances with the pulverized ore in water and agitating the mixture, the particular substance most effective with the particular ore and the limit of the quantity of it to be used being determined by preliminary tests. P. 401.
3. This disclosure anticipated Patent No. 962,678, here in suit, which claims a similar process but relies on "mineral frothing agents" that dissolve in the water. The later patent cannot be sustained upon the ground that the selective substances referred to in the earlier one are oils and upon the assumption that oils function by coating the metalliferous particles and that the other substances function by "modifying the water." P. 403.
4. The rule attributing weight to the commercial success of a patent as evidence of invention held inapplicable here on the special facts of the case. P. 404.
30 F.2d 67 affirmed.
Certiorari, 279 U.S. 832, to review a decree of the circuit court of appeals, which reversed a decree of the district court, 23 F.2d 931, in favor of the above-named petitioner in a suit for alleged infringement of its patent.
Contents:
Chicago: U.S. Supreme Court, "Syllabus," Mineral Separation Corp. v. Magma Copper Co., 280 U.S. 400 (1930) in 280 U.S. 400 280 U.S. 401. Original Sources, accessed November 22, 2024, http://originalsources.com/Document.aspx?DocID=VNQDFQ37HEZ6R1E.
MLA: U.S. Supreme Court. "Syllabus." Mineral Separation Corp. v. Magma Copper Co., 280 U.S. 400 (1930), in 280 U.S. 400, page 280 U.S. 401. Original Sources. 22 Nov. 2024. http://originalsources.com/Document.aspx?DocID=VNQDFQ37HEZ6R1E.
Harvard: U.S. Supreme Court, 'Syllabus' in Mineral Separation Corp. v. Magma Copper Co., 280 U.S. 400 (1930). cited in 1930, 280 U.S. 400, pp.280 U.S. 401. Original Sources, retrieved 22 November 2024, from http://originalsources.com/Document.aspx?DocID=VNQDFQ37HEZ6R1E.
|