ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,342, issued on June 2, was assigned to SAMHWA Co. LTD (Uiwang-si, South Korea).
"Compact powder case" was invented by Kyung chang Lee (Uiwang-si, South Korea), Jonghyun Park (Suwon-si, South Korea) and Ga Yeon O (Ansan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compact powder case is disclosed. The compact powder case includes: a storage part that has an inner wall member and a floor member, with a restrictor slit formed in the inner wall member and a supply slit formed in the floor member; a piston that has a first coupler part formed at a position corresponding to the restrictor slit, is movable within the storage space, and i...