ALEXANDRIA, Va., July 3 -- United States Patent no. 12,342,950, issued on July 1.
"Carpet stretcher" was invented by Paul Day (Bristol, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A carpet stretcher comprising: a head mechanism; a tail mechanism; and an elongate extender; wherein the head mechanism is connected to a distal end of the elongate extender, and the tail mechanism is connected to a proximal end of the elongate extender; and wherein: the head mechanism comprises: a head element having a carpet engaging surface; an extension element for extending the elongate extender at its distal end so as to urge the head element distally; and a lever mechanism for actuating the extension element...