ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,860, issued on May 27, was assigned to GUANGZHOU PRODIGY DAILY-PRODUCTION Co. LTD (Guangzhou, China).
"Door guardrail without exposed support rods" was invented by Zhanpeng Liang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A door guardrail without exposed support rods, comprising a fabric winding tube and a handlebar arranged on an outer side of the fabric winding tube, a mesh fabric being arranged between the fabric winding tube and the handlebar, a support rod is arranged in the fabric winding tube, a spring device allowing the mesh fabric to retract automatically after being pulled out is disposed around the support rod, a lo...