Fire door components and fire doors comprising the components
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United States of America Patent
Stats
-
Nov 18, 2003
Grant Date -
Jan 23, 2003
app pub date -
Jul 6, 2001
filing date -
Jul 6, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Structural components for a fire door comprising a core and edge banding and other structural components, the components comprising gypsum, expanded perlite, and cement, and having a density between about 60 and 80 lbs./ft..sup.3. Also, a method by which the structural components are made and a fire door comprising the components.
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Family
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Cited Art Landscape
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