Application of Birdsall P. Lawson, Deceased (Pilling Chain Co., Assignee)

JOHNSON, Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the holding of the Primary Examiner rejecting as unpatentable claims 1 to 14 in appellant’s application for a patent for “Non-Jamming Slider for Separable Fasteners.”

The appealed claims relate to a construction for the slider element which is used for engaging and disengaging the complementary opposed teeth (scoops) of a slide fastener. The slider element, that is, the part of the slide fastener which is adapted to be moved back and forth along the rows of teeth, consists…