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W. D. HADEN CO. v. MATHIESON ALKALI WORKS

No. 774.

30 F.Supp. 617 (1939)

W. D. HADEN CO. v. MATHIESON ALKALI WORKS, Inc.

District Court, W. D. Louisiana, Lake Charles Division.

November 30, 1939.

Attorney(s) appearing for the Case

Edward Rightor, of New Orleans, La., Clement Moss, of Lake Charles, La., Robert S. Blair and Daniel L. Morris, both of New York City, Delos G. Haynes and Frederick B. Wolf, both of St. Louis, Mo., and John C. Blair, of New York City, for plaintiff.

Pujo, Hardin & Porter, of Lake Charles, La., E. Howard McCaleb, of New Orleans, La., and R. F. Adams and Leslie B. Young, both of New York City, for defendant.

DAWKINS, District Judge.

Plaintiff, suing as the assignee of Letters Patent No. 1,896,403 issued to Cecil R. Haden, February 7, 1933, covering a process for making lime from oyster shells, charges the defendant with infringement, demands an accounting and finally an injunction.

The defenses are, first, invalidity of the patent, and second, noninfringement.

Validity

The principal object of the patent, as stated in general terms by the specifications...

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