District Court, N.D. Illinois July 21, 1925, No. 779 (United States Gypsum Co. v. Bestwall Mfg. Co.)

WILKERSON, District Judge.

The original bill in this ease named Bestwall Manufacturing Company as sole defendant. It charged infringement of letters patent No. 1,029,328 and No. 1,034,746. The first covers a method of manufacturing plaster board; the second covers the product. The case was tried by Judge Sanborn, who held all claims of both patents valid and infringed. (D. C.) 258 F. 647.