ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,439,993, issued on Oct. 14, was assigned to Cardo Systems Ltd. (Ra'anana, Israel).

"Fastening device, combination of fastening device, functional unit and receiving unit, and combination of a head-protective gear with such a fastening device" was invented by Avram Kushnirov (Barkan, Israel), Dov Brecher (Givat Shmuel, Israel), Boaz Levi (Binyamina, Israel) and Shmuel Debby (Hod Hasharon, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fastening device for releasably fastening a functional unit in a connection direction to a receiving unit. The fastening device comprises a functional unit comprising a functional unit abutment surface and a receiv...