In re Smith

MARTIN, Chief Justice.

Appeal from a decision rejecting all of the claims of appellant’s application..[1] Th,e invention relates particularly to concrete building blocks and their use in building walls. The blocks in question are hollow, with webs or ribs regularly crossing the open interiors; they have a triangular shape in .cross-seetion, and are made in multiples or submultiples of one another in size. *679The inventor states that their use aids in the rapid and cheap construction of -weatherproof and damp-proof walls, having vertical ventilation; that the walls may be composed, if desired, of…