ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,218, issued on Oct. 14, was assigned to Sargent Manufacturing Co. (New Haven, Conn.).
"Door lock with indicator" was invented by Brian R. Fournier (Canton, Conn.), Daniel Gills (Nashville, Tenn.), Thomas Harris (Charlotte, N.C.), Jeong Sik Kim (Daegu, South Korea) and Yong Hyun Kim (Daegu, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a door lock configured to indicate the lock status of the door lock to nearby persons. In some instances, the door lock includes a locking mechanism with one or more actuators configured to act directly on an indicator such that the indicator indicates the lock status of the lock."
The...