U.S. federal trademark · Serial No. 73118040 · Reg. No. 1144792
Electrically Controlled Door Holding and Releasing System Primarily for Use in Hospitals for Closing Corridor and Patient Room Doors in the Event of Smoke or Fire Emergency-Namely, Pneumatically-Operated Door Closer Apparatus, Separate Smoke Detectors and Control Panel Interface Module
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.