In re Kylstra

The application for patent here at issue, filed in the United States Patent Office April 11, 1932, is entitled “For Improvement in Ammunition Counters.” At its outset, the specification recites that the alleged invention relates to military equipment, “specifically to machine guns such as are mounted upon airplanes,” but the claims themselves are not so specifically limited. Patentability was denied by the examiner in view of prior art cited and the Board of Appeals affirmed his decision. The instant appeal to this court followed.

There are four claims, numbered, respectively, 9, 10, 11 and…