David R. Ahlstrom

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Dewittville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Window assembly having a thermal break liner
- Patent number 8,484,902
- Issue date Jul 16, 2013
- Hope's Window, Inc.
- John E. Brown
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

Information Patent Application
Fixed Window Assembly Having A Thermal Break Liner
- Publication number 20140331576
- Publication date Nov 13, 2014
- John E. Brown
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS