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Keith Lynn Lewallen
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Salado, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Multi-layered fire door and method for making the same
Patent number
7,721,500
Issue date
May 25, 2010
Jeld-Wen, Inc.
Randy Jon Clark
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Multi-layered fire door and method for making the same
Patent number
7,185,468
Issue date
Mar 6, 2007
Jeld-Wen, Inc.
Randy Jon Clark
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Patents Applications
last 30 patents
Information
Patent Application
Multi-layered fire door and method for making the same
Publication number
20070125043
Publication date
Jun 7, 2007
JELD-WEN, inc.
Randy Jon Clark
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Application
Multi-layered fire door and method for making the same
Publication number
20070125044
Publication date
Jun 7, 2007
JELD-WEN, inc.
Randy Jon Clark
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Application
Multi-layered fire door and method for making the same
Publication number
20040226245
Publication date
Nov 18, 2004
Randy Jon Clark
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS