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FLORIDIN CO. v. ATTAPULGUS CLAY CO.

No. 7634.

125 F.2d 669 (1942)

FLORIDIN CO. v. ATTAPULGUS CLAY CO.

Circuit Court of Appeals, Third Circuit.

Decided January 30, 1942.

Attorney(s) appearing for the Case

John J. Darby, of Washington, D. C., and George P. Dike, of Boston, Mass., (Hugh M. Morris and S. Samuel Arsht, both of Wilmington, Del., on the brief), for plaintiff-appellant.

Maxwell Barus, of New York City and Herbert L. Cohen, of Wilmington, Del. (Paul R. Ames, of New York City, on the brief), for defendant-appellee.

Before MARIS, JONES, and GOODRICH, Circuit Judges.

GOODRICH, Circuit Judge.

This case involves the validity of the patent known as the Hartshorne patent (No. 2,079,854) for the treatment of fuller's earth designed to increase the capacity of that substance for decolorizing oil. The District Court held the plaintiff's patent invalid for anticipation by and lack of invention over Ikeda patent No. 1,630,660 (owned by defendant) and the corresponding Ikeda Japanese patent No. 42,368. The plaintiff appeals to this court...

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