ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,457,991, issued on Nov. 4.
"Cat litter basin convenient for cleaning" was invented by Shoubang Lin (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cat litter basin convenient for cleaning comprises an outer frame and an inner frame; the outer frame has a length and a width, the outer frame extends upward along the length direction to form a side wall, and the side wall is provided with a slope with gradually decreasing height along the length direction; the inner frame comprises a shovel plate, and the shovel plate extends upward along the length direction to form a pedal, both the shovel plate and the pedal are provided with a pluralit...