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IN RE WASHBURN

Patent Appeal No. 5684.

182 F.2d 202 (1950)

In re WASHBURN.

United States Court of Customs and Patent Appeals.

May 9, 1950.

Attorney(s) appearing for the Case

James B. Christie, Pasadena, Cal. (Richard L. Underwood, Washington, D. C., of counsel), for appellant.

E. L. Reynolds, Washington, D. C. (H. S. Miller, Washington, D. C., of counsel), for Commissioner of Patents.

Before GARRETT, Chief Judge, and JACKSON, O'CONNELL, and JOHNSON, Judges.

JOHNSON, Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office sustaining that of the Primary Examiner rejecting method claims 7 and 8 of an application for a patent for the analysis of mixtures with a mass spectrometer. Four apparatus claims were allowed.

The claims in issue read as follows:

"7. In a process for analyzing a gaseous mixture by mass spectrometry involving the production of ions from gas...

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