John R. Foster

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Indianapolis, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Dogging device, method of forming the same, and an adapter kit ther...
- Patent number 4,466,643
- Issue date Aug 21, 1984
- Von Duprin, Inc.
- Maksimilijan Godec
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Latching device
- Patent number 4,427,223
- Issue date Jan 24, 1984
- Von Duprin, Inc.
- Maksimilijan Godec
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Means for, and a method of, securing a closure
- Patent number 4,401,330
- Issue date Aug 30, 1983
- Von Duprin, Inc.
- John R. Foster
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Apparatus for operating a door latching and unlatching device
- Patent number 4,305,612
- Issue date Dec 15, 1981
- Von Duprin, Inc.
- Larry R. Hunt
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES