Upper window sash with projections for simplified sash installation and removal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 23, 1989
Grant Date -
N/A
app pub date -
Sep 11, 1987
filing date -
Sep 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An upper sash of a frame window or door assembly which is provided with projections extending below the lower rail of the upper sash, wherein the projections engage and cooperate with a notch found on the flange of the jamb of the frame assembly in a manner so as to support and restrict movement of the upper sash.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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