U.S. federal trademark · Serial No. 98106191
Universal lock system for a tamper-resistant shelter-in-place barricade comprised of a portable metal locking device having a vertically-displaceable pin carriage having spring-loaded locking pins that is stored in a wall enclosure and containing an ancillary electronic alert device which, when opened to remove the locking device, alerts authorities of the user's location while permitting the user to slide the locking device into a metal track at the base of a door and activate the locking device by stepping on an attached pedal to drive the locking device's metal locking pins into a floor strike
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.