ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,131, issued on Oct. 21, was assigned to TANAQRO. Co. LTD. (Saitama, Japan).
"Fire pit" was invented by Masato Nagatsuma (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fire pit includes a fire bed and a pair of side panels set up facing each other to support the fire bed. The fire bed has a first bottom plate and a second bottom plate which are connected by a hinged connection and forms a valley with the hinged connection as the bottom. The pair of side panels, a first side panel and a second side panel, are attachable to and detachable from the fire bed, and form a curve in a convex shape towards the inward of the fire pit when attached to ...