ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,897, issued on Dec. 23, was assigned to Guangzhou Guub Technology Co. Ltd (Guangzhou, China).
"Hinge structure" was invented by Jingong Li (Guangdong, China) and Jianhong Li (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The application discloses a hinge structure which comprises: a first board body and a first connecting portion extending from a portion of an edge of the first board body and bending to define a first groove; a second board body and a second connecting portion extending from a portion of an edge of the second board body and bending to define a second groove; and a hinge shaft extending through the first groove and ...