ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,416, issued on Nov. 4, was assigned to New Castle Steel Inc. (Marietta, Ga.).
"Metal and steel substructure framing systems" was invented by Jason Alloway (Roswell, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A metal and steel framing and substructure system may include a stair assembly system for an elevated metal substructure framing structure. The metal and steel framing and substructure system may include hollow stair stringers formed from single laser-cut steel sheets, each having rises and runs to define integrated steps. The system further includes handrail post brackets spanning between stringers for securing railings. The stair assemb...