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INTERNATIONAL PATENTS DEVELOPMENT CO. v. PENICK & FORD

No. 654.

15 F.Supp. 1038 (1936)

INTERNATIONAL PATENTS DEVELOPMENT CO. et al. v. PENICK & FORD, Limited, Inc.

District Court, D. Delaware.

July 30, 1936.

Attorney(s) appearing for the Case

Melville Church, of Washington, D. C., Percival H. Truman (of Barnett & Truman), of Chicago, Ill., and Hastings, Stockly & Duffy, of Wilmington, Del., for plaintiffs.

John H. Lee and Horace Dawson (of Dyrenforth, Lee, Chritton & Wiles), both of Chicago, Ill., and William G. Mahaffy, of Wilmington, Del., for defendant.

NIELDS, District Judge.

This is a patent suit charging defendant with infringement of three patents for the production of grape sugar. Grape sugar, corn sugar, dextrose, and dextrose hydrate are terms used interchangeably to describe the product of the patents. The defenses are invalidity, noninfringement, license, and estoppel.

The first patent, No. 1,471,347, granted October 23, 1923, to William B. Newkirk, assignor...

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