ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,395, issued on Oct. 28, was assigned to AptarGroup Inc. (Crystal Lake, Ill.).
"Dispensing closure" was invented by John Wisniewski (Wauwatosa, Wis.) and Timothy Michael Mazurkiewicz (Waukesha, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dispensing closure (40, 40A, 40B) defines a central axis and has a first body (54, 54A, 54B) for being located at an opening of a container. The first body (54, 54A, 54B) having a first peripheral wall (56, 56A, 56B) and a membrane (60, 60A, 60B) that is connected to the first peripheral wall (56, 56A, 56B) to initially occlude access to the interior of the container. The membrane (60, 60A, 60B) includes a ...