US Patent Issued on Aug. 19 for "Side structure of playpen framework, playpen framework, playpen, and folding method of the playpen" (Chinese Inventor)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,019, issued on Aug. 19.

"Side structure of playpen framework, playpen framework, playpen, and folding method of the playpen" was invented by Yu Yan (Hunan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A side structure of a playpen framework, the playpen framework, a playpen, and a folding method of the playpen are provided. The side structure includes two vertical support rods, two horizontals support rods, two diagonal support rods, and two first connecting rods. First ends of the horizontal support rods are respectively detachably connected to upper ends of the vertical support rods. Second ends of the horizontal support rods are rotatably...