ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,984, issued on Aug. 26, was assigned to Wm. Wrigley Jr. Co. (Chicago).
"Clamshell packaging container" was invented by Paul J. Angeloni (Chicago), Ross E. Bartels (Chicago), William Tham (Chicago), H. Stephen Quinn (Chicago) and Christopher H. Cunningham (Chicago).
According to the abstract* released by the U.S. Patent & Trademark Office: "Clamshell packaging containers and methods of making them are disclosed. A container includes a first shell portion and a complementary second shell portion that defines a product cavity. A bridging portion coupled to the first shell portion at a first hinge and the second shell portion at a second hinge such that the bridging portion is pivota...