Minnesota Mining & Mfg. Co. v. Coe

RUTLEDGE, Associate Justice.

The appeal is from a judgment of the District Court dismissing the complaint as to certain of plaintiff’s claims in an action to authorize the Commissioner of Patents to issue a patent.1 The trial court authorized the issuance of a patent as to two of the claims, and the Commissioner does not appeal from this ruling.

The claims relate to a “sandblast stencil.” This is a sheet of material which is affixed to the surface of a stone in which letters or- figures are to be cut. The stencil is cut to form the letters or figures desired. The engraver uses a gun which…