ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,210,320, issued on Jan. 28, was assigned to Shenzhen CIGA Design Co. Ltd. (Shenzhen, China).
"Watch with case convenient to replace" was invented by Jianmin Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A watch includes a case, a movement and an inner container. The movement is disposed on the inner container. The watch further includes an engagement structure for assembling the case and the inner container. The engagement structure includes an elastic component and an engagement block used for fixing the elastic component. The engagement block is fixed to the inner container. The elastic component includes a buckle and an elasti...