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APPLICATION OF STEWART

Patent Appeal No. 7199.

333 F.2d 253 (1964)

Application of Robert Marshall STEWART and Emory P. Boynton.

United States Court of Customs and Patent Appeals.

June 25, 1964.

Attorney(s) appearing for the Case

Mason, Kolehmainen, Rathburn & Wyss, Chicago, Ill., Boris Haskell, Alfred B. Levine, Washington, D. C., Warren D. McPhee, Chicago, Ill. (Nicholas M. Esser, Chicago, Ill., of counsel), for appellants.

Clarence W. Moore, Washington, D. C. (S. Wm. Cochran, Washington, D. C., of counsel), for the Commissioner of Patents.

Before WORLEY, Chief Judge, and RICH, MARTIN, SMITH, and ALMOND, Judges.

RICH, Judge.

This appeal is from the decision of the Patent Office Board of Appeals affirming the rejection of claims 11, 16 and 18 of application serial No. 834,472, filed August 18, 1959, for "Continuous Diffusion Process."

The invention relates to a process for extracting sugar from sugar cane by continuous diffusion wherein slices of cane are contacted with hot water in a countercurrent liquid-solid extraction (leaching) process. The sole issue is whether...

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