ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,465, issued on June 3, was assigned to SILVER PLASTICS GMBH (Troisdorf, Germany).
"Packaging tray with a profiled sealing edge" was invented by Rene Derks (Belfeld, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a packaging tray (1), produced from a thermoformed plastics sheet, with a base (10), sidewalls (11, 12) and a sealing edge (13) which is formed peripherally on the upper side of the sidewalls (11, 12) and onto which a sealing film (2) can be placed and can be bonded to the sealing edge (13), in which the sealing edge (13) is formed with a contact surface, which is provided for supporting the sealing film, ...