ALEXANDRIA, Va., May 19 -- United States Patent no. 12,628,955, issued on May 19, was assigned to XIAMEN UNIPROS CAMPING PRODUCTS COMPANY Ltd. (Xiamen, China).
"Foldable frame" was invented by Yonggeng Yang (Xiamen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foldable frame includes a first connection seat and at least three second connection seats which are arranged at intervals around the first connection seat. The first connection seat and the second connection seats are connected by first connection rods, and the second connection seats are provided with at least one second connection rod. The first connection seat has a first end surface, and the second connection seats each has a second end ...