ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,911, issued on April 22, was assigned to ALL STAR HOUSEWARE LTD. (Shanghai).
"Foldable file box" was invented by Xiaowei Song (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foldable file box includes: a plastic sheet including a bottom wall and two side walls that are foldable relative to the bottom wall to form a U-shaped structure; two side frames interlocking with the bottom wall and the two side walls to form a box structure including a top opening; two hanging rods each including a bottom portion interlocking with the top part of the plastic sheet, and two ends of each hanging rod respectively interlocking with the two side frames; a...