US Patent Issued on Sept. 9 for "Paper lid for food container and method of manufacturing the same" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,628, issued on Sept. 9.

"Paper lid for food container and method of manufacturing the same" was invented by In Seok Cho (Bucheon-si, South Korea) and Dong Chul Lee (Bucheon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method of manufacturing a paper lid for a food container, the method including a blanking step of cutting out lid molding paper having radial wrinkles at the edge thereof from base paper having upper and lower surfaces, each of which is treated with a synthetic resin coating, a primary molding step of molding the paper lid including a cover plate and a skirt wall bent downwards along the edge of the co...