ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,266, issued on May 26, was assigned to Petro-Pack Ab (Ljungby, Sweden).
"Package closure and a method for producing a package closure" was invented by Hugo Nilsson (Ljungby, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A package closure (10) comprising a neck (12), a cap (11) for closing an opening of the neck (12), and a folded portion (21) connecting the neck (12) and the cap (11), wherein the neck (12) has an axis (A) and is formed with a tubular portion (16) and an inward projecting sealing flange (18), wherein the cap (12) is formed with a top portion (13) for covering the opening of the neck, and an axially extending sealing ring (19) ...