ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,981, issued on Feb. 24, was assigned to Endura Products LLC (Colfax, N.C.).
"Methods of operating a lock" was invented by Stephen Simon (Winston-Salem, N.C.) and Tomasz Jaskiewicz (Oak Ridge, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of controlling a lock mechanism of an active door includes transiting an access controller of the lock mechanism to an authorized access mode and transitioning the access controller from the authorized access mode to an entry mode. Transitioning the access controller to the authorized access mode is in response to an authorized user being sensed approaching the active door from an exterior side of the...