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NATIONAL PIGMENTS & CHEMICAL CO. v. SHREVEPORT CHEM. CO.

No. 367.

1 F.Supp. 417 (1932)

NATIONAL PIGMENTS & CHEMICAL CO. v. SHREVEPORT CHEMICAL CO. et al.

District Court, W. D. Louisiana, Shreveport Division.

August 22, 1932.

Attorney(s) appearing for the Case

J. G. Palmer, of Shreveport, La., A. C. Paul, of Minneapolis, Minn., and John H. Bruninga, of St. Louis, Mo., for plaintiff.

Ben E. Coleman, of Shreveport, La., Linton, Kellogg & Smith, of Washington, D. C., and Exby, Moriarty & Pierce, of Memphis, Tenn., for defendants.

DAWKINS, District Judge.

This is a suit for direct and contributory infringement of letters patent No. 1,575,945, covering an improvement in the application of mud-laden fluids to oil and gas wells, alleged to have been invented by one Ben K. Stroud, whose rights thereunder are now claimed by the plaintiff as assignee. The petition charges that the infringement consists in the manufacture, sale, and offering for sale mud bases and mud heaviers, and the combinations...

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