ALEXANDRIA, Va., April 21 -- United States Patent no. 12,604,990, issued on April 21, was assigned to STEP2GOLD Co. LTD. (Taichung City, Taiwan).
"Foldable device" was invented by Chih-Ting Pao (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foldable device includes a pivot base, three supporting rods, at least one folding rod unit, a linkage rod, and a pivot member that is located above the pivot base. The linkage rod has a pivot section that is pivotably connected to the pivot member, and a moving section that is opposite to the pivot section. The at least one folding rod unit is pivotably connected to one of the supporting rods. The moving section of the linkage rod is slidably mou...