Vandal-resistant security view port
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United States of America Patent
Stats
-
Feb 25, 1986
Grant Date -
N/A
app pub date -
Mar 16, 1984
filing date -
Mar 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vandal-resistant security view port for use in prison cells and the like. The view port permits observation into a cell or room and is mounted on a frame which can be attached over an opening in a wall of the cell. The view port has a transparent pane and a grate and may be open or covered by a hinged door operable from the back side of the wall.
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Family
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Cited Art Landscape
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