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Patents
Patents Assigned to Warm Springs Composite Products
Patents Assigned to Warm Springs Composite Products
Fire door
Patent number:
7669383
Abstract:
A fire door designed to slow the progress of a fire in a dwelling or commercial building. More particularly, a fire door having one or more vertical stiles that include a layer of intumescent material.
Type:
Grant
Filed:
February 15, 2006
Date of Patent:
March 2, 2010
Assignee:
Warm Springs Composite Products
Inventor:
Duane Darnell