In re Phipps

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the action of the Primary Examiner in finally rejecting the only claim presented in appellant’s application for a patent for improvements on a cross roller bit particularly designed for use in boring oil wells.

The rejected claim reads—

11. In a roller cutter construction, a frustoconical cutter body, two series of parallel rows of narrow teeth transverse to the axis of the cutter body, each, series extending semicircumferentially around the body on opposite sides and starting from the…