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DEMULSO CORPORATION v. TRETOLITE CO.

No. 1117.

74 F.2d 805 (1934)

DEMULSO CORPORATION v. TRETOLITE CO. et al.

Circuit Court of Appeals, Tenth Circuit.

December 19, 1934.

Attorney(s) appearing for the Case

Felix A. Bodovitz, of Tulsa, Okl., and Arthur C. Brown, of Kansas City, Mo., for appellant.

Paul Bakewell, of St. Louis, Mo., Edmund Lashley, of Tulsa, Okl., Frank E. Barrows, of New York City, and W. D. Abbott, of Tulsa, Okl., for appellees.

Before PHILLIPS and McDERMOTT, Circuit Judges, and POLLOCK, District Judge.

McDERMOTT, Circuit Judge.

This appeal brings on for review an order refusing appellant leave to intervene in an infringement suit brought by appellee, the Tretolite Company, against the Darby Petroleum Corporation, for a claimed infringement of nine claims of Letters Patent number 1,467,831 owned by the Tretolite Company. The various claims cover a "process for treating petroleum emulsions" and claim the steps of subjecting the emulsion to the action of "a modified...

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