Steel security door frame
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 21, 1990
Issued Date -
N/A
app pub date -
Jun 12, 1989
filing date -
Mar 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A steel security door frame including a top frame member; a bottom frame member; a first side frame member; and a second side frame member. Each of the frame members include front and rear sections made up of diverse elements to form specific panel arrangements and trackways including a guideway for slidably receiving a movably glass panel and for allowing the movable glass panel to be moved between open and closed positions. Each of the front and rear sections are bent from sheet steel.
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Family
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Cited Art Landscape
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