ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,732, issued on Sept. 23, was assigned to CertainTeed LLC (Malvern, Pa.).
"Flat siding panel and panel siding system" was invented by Stephen W. Steffes (McPherson, Kan.) and Brian W. Kirn (Hatboro, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates generally to cladding for covering a building surface. The present disclosure relates more particularly to flat siding panels that form a visible surface over a support structure. The siding panel includes a panel body having a front wall extending across the length and height of the panel body. Each of an upper wall, lower wall, first side wall, and second side wall extend...