Michael S. Heafey

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Quincy, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ladder stand-off
- Patent number 7,137,482
- Issue date Nov 21, 2006
- Philip Orlando Underhill
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

Information Patent Application
Ladder stand-off
- Publication number 20060225962
- Publication date Oct 12, 2006
- Philip Orlando Underhill
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
Ladder stand-off
- Publication number 20050072633
- Publication date Apr 7, 2005
- Philip Orlando Underhill
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS