William L. Downey

Follow

Person

Peru, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Door closer for the non-fire side of a fire-door safety installation
- Patent number 5,864,920
- Issue date Feb 2, 1999
- Schlage Lock Company
- Rex H. Lasson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door closer for the non-fire side of a fire-door safety installation
- Patent number 5,709,009
- Issue date Jan 20, 1998
- Schlage Lock Company
- Rex H. Lasson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door security track
- Patent number 5,088,152
- Issue date Feb 18, 1992
- Schlage Lock Company
- William L. Downey
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door closer position monitor
- Patent number 4,916,267
- Issue date Apr 10, 1990
- Schlage Lock Company
- Thomas R. Lasier
- G08 - SIGNALLING
Information Patent Grant
Door position indicator for a door closer
- Patent number 4,835,905
- Issue date Jun 6, 1989
- Schlage Lock Company
- Thomas R. Lasier
- G08 - SIGNALLING
Information Patent Grant
Releasable hold-open device for a door closer
- Patent number 4,506,407
- Issue date Mar 26, 1985
- Schlage Lock Company
- William L. Downey
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES