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APPLICATION OF NOVAK

Patent Appeal No. 6789.

306 F.2d 917 (1962)

Application of Leo J. NOVAK and Joseph T. Tyree.

United States Court of Customs and Patent Appeals.

July 25, 1962.

Attorney(s) appearing for the Case

Toulmin & Toulmin, Harry A. Toulmin Jr., and Folsom E. Drummond, Washington, D. C., for appellants.

Clarence W. Moore, Washington, D. C. (Jack E. Armore, Washington, D. C., of counsel) for Commissioner of Patents.

Before WORLEY, Chief Judge, RICH, MARTIN, and SMITH, Judges, and Judge WILLIAM H. KIRKPATRICK.

MARTIN, Judge.

This is an appeal from a decision of the Board of Appeals of the U. S. Patent Office affirming the examiner's rejection of claims 10, 11 and 12, all of the claims of appellants' application, Serial No. 638,889, filed December 3, 1956, for a patent on "Thickening and Gelling Agents."

The following claims are representative:

"10. A thickening and gelling composition for aqueous media and which is stable in acid solutions of a carboxymethyl...

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