Fireproof door for hotels, skyscrapers and the like
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United States of America Patent
Stats
-
Jun 2, 1981
Grant Date -
N/A
app pub date -
Aug 7, 1979
filing date -
Aug 21, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fireproof door has a fabric of ceramic or glass fibers attached to a metal frame and covered by facings. The fabric which also may be used as a fireproof mat consists of layers of titanium-treated ceramic or glass fibers felted together by similar needlelike fibers extending through an intermediate layer of fireproof particulate material.
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Cited Art Landscape
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