John F. Prendergast Sr.

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Franklin, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for controlling an elevator
- Patent number 5,168,131
- Issue date Dec 1, 1992
- The Cheney Company
- Robert P. Smith
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Stairway lift chair
- Patent number D322362
- Issue date Dec 17, 1991
- The Cheney Company
- David R. Voves
- D06 - Furnishings
Information Patent Grant
Stairway wheelchair lift
- Patent number 5,052,521
- Issue date Oct 1, 1991
- The Cheney Company
- David W. Wendt
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Stairway chairlift mechanism
- Patent number 4,913,264
- Issue date Apr 3, 1990
- The Cheney Company
- David R. Voves
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Electrical control system for stairway wheelchair lift
- Patent number 4,904,916
- Issue date Feb 27, 1990
- The Cheney Company
- Edward T. Gisske
- B66 - HOISTING LIFTING HAULING