ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,482, issued on July 7, was assigned to Jiangsu Sunwell Cabinetry Co. Ltd. (Yixing, China).
"Fast and simple expansion bolt" was invented by Jianyun Xiao (Yixing, China), Jianwei Weng (Yixing, China) and Jianmin Qi (Yixing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a fast and simple expansion bolt, including an expansion bolt main body, an expansion bolt locating line formed in an outer wall of a front end of the expansion bolt main body; a locating slot formed in the expansion bolt locating line; a rubber ring located on an outer wall of the expansion bolt main body; a tail seat and a locating ring located ...