Methods of manufacturing window covering with artificial creases
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United States of America Patent
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Jan 6, 2004
Issued Date -
N/A
app pub date -
Oct 12, 2001
filing date -
Jan 7, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Expandable and collapsible window coverings are disclosed including a web of non-rigid material and a stiffener intermittently applied to the web to provide stiffened regions along the web separated by regions of the non-rigid material. In this manner, the regions of non-rigid material can act as hinges between the stiffened regions. Methods for forming these window coverings are also disclosed.
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Cited Art Landscape
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