ALEXANDRIA, Va., May 5 -- United States Patent no. 12,616,291, issued on May 5.
"Refillable stick-type content container" was invented by David C. Chung (Incheon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A content container includes: a base kit; and a refill kit which is separable from and combinable with the base kit and is filled with the content, wherein the base kit includes: a bottom housing having an inner space; and a screw column arranged within the bottom housing, the refill kit includes: a cylinder which is hollow and has a screw engagement protrusion formed on the inner bottom; and a holder assembly positioned within the cylinder to secure the content, the screw column includes a...