ALEXANDRIA, Va., April 21 -- United States Patent no. 12,604,977, issued on April 21, was assigned to PROTREND Co. LTD. (Taipei City, Taiwan).
"Storage shelf for tool-free cabinet assembly" was invented by Shun-Yi Chen (Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A storage shelf for tool-free cabinet assembly includes column set, rung assembly, horizontal laminate, vertical laminate and assembly device. The column set includes square pipe elements. The rung assembly is provided between these square pipe elements, one horizontal laminate is used as a top plate, and another one a bottom plate provided on the rung assembly. The vertical laminate is provided between the top and bottom plat...