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IN RE CHRISTMANN

Patent Appeal No. 4604.

128 F.2d 596 (1942)

In re CHRISTMANN et al.

Court of Customs and Patent Appeals.

May 4, 1942.

Attorney(s) appearing for the Case

Ellis S. Middleton, of New York City, for appellants.

W. W. Cochran, of Washington, D. C. (E. L. Reynolds, of Washington, D. C., of counsel), for Commissioner of Patents.

Before GARRETT, Presiding Judge, and BLAND, HATFIELD, LENROOT, and JACKSON, Associate Judges.

BLAND, Judge.

This appeal presents but one question for decision, and that one relates to double patenting. The Primary Examiner of the United States Patent Office rejected all appellants' claims in their application filed April 18, 1940, chiefly on the ground of double patenting. The claims in said application define a reaction product.

The eight claims on appeal differ in scope only. The Board of Appeals of the United States Patent Office was of the opinion...

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