Fire escape ladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 1, 1999
Grant Date -
N/A
app pub date -
May 29, 1998
filing date -
May 29, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fire escape ladder which includes recessed steps which are mounted into an interior or exterior wall of a house, or the concrete walls of a basement, to provide an escape route to a window. When the ladder is used, the lock to the window is automatically released, and springs in the window frame cause the window to partially open. An associated smoke detector or a connection to the household smoke detector activates lights in the recessed steps and an audible alarm which aids in egress from a dark or smoke-filled building.
First Claim
Family
International Classification(s)
Cited Art Landscape
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