Roller window screen
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 1989
Grant Date -
N/A
app pub date -
Feb 29, 1988
filing date -
Feb 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A window screen is attached to a sliding sash and to the sill. Fixed to the screen are two or more vertical bands of coil spring material. Thus when the sash is closed the springs cause the screen to coil tightly. As the sash is raised, the screen is uncoiled so that it covers the opening but remains taut. The coil may be located at the middle of opening or at the top. A housing integral with the sash end of the screen or surrounding the spring coil protects the coil from weather and debris.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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