ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,888, issued on Dec. 30.
"Joint compound application assembly" was invented by Christopher Gregory (Okotoks, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A joint compound application assembly for evenly applying joint compound to drywall includes a cart and a box disposed on the cart. A pan is positionable in the box thereby facilitating the box to restrain the pan and the pan can contain joint compound. A roller mount has a first engagement element fixed to the roller mount and a second engagement element movably attached to the roller mount. The second engagement element is positionable in an engaging position or a disengaging position. A ...