In Re Washburn

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 á 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 molecules and the projection of the ions through an aperture by impressing an electrical potential on the ions, the improvement which comprises…