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METALS RECOVERY CO. v. ANACONDA COPPER MINING CO.

No. 332.

26 F.2d 736 (1928)

METALS RECOVERY CO. v. ANACONDA COPPER MINING CO.

District Court, D. Montana.

January 31, 1928.

Attorney(s) appearing for the Case

Edward B. Howell, of Butte, Mont., and Pennie, Davis, Marvin & Edmonds, William H. Davis, and Merton W. Sage, all of New York City, for plaintiff.

D. M. Kelly, D'Gay Stivers, John A. Groeneveld, and L. O. Evans, all of Butte, Mont., and Henry D. Williams, Charles Neave, and John F. Neary, all of New York City, for defendant.

BOURQUIN, District Judge.

This infringement suit involves claims 1 to 4 of patent No. 1,364,304, for which Perkins filed application July 21, 1919. The specification is that the invention is "new and useful improvements in flotation of minerals," based on the discovery that improved results are obtained "with the addition, to the ore or mineral pulp, of certain nonoleaginous solid organic compounds, which themselves have substantially no frothing properties, but which...

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