ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,547, issued on June 17, was assigned to Schlage Lock Co. LLC (Carmel, Ind.).
"Indicator lever" was invented by Drake Lunday (Colorado Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lock apparatus according to certain embodiments has a first state and a second state, and generally includes a handle and a status indicator. The handle includes a display area formed in a front face of the handle, and the display area comprises at least a majority of the front face. The status indicator is configured to display each of a plurality of indicia in the display area. The status indicator is configured to display a first indicium in the displa...