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Document Number
US Patent 5897543
Issued Date
April 27, 1999
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Abstract
The invention is directed to a thermoplastic film having a first surface and a second surface. The second surface is spaced apart from the first surface. A plurality of perforations extend through the film from the first surface to the second surface. The perforations form capillaries that extend from the second surface. The capillaries are disposed at an angle from about 5.degree. to about 60.degree. with respect to a plane that is perpendicular to the first surface.
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Film - US Patent 5897543 Drawing
Drawing from US Patent 5897543
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Number of Claims:
12
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Owner
Published
April 27, 1999
Application Number
08/727,326
Filed
October 8, 1996
US Classification
604/383   428/131 428/132 428/137 428/156 604/370 604/378
Int'l Classification
A61F   13/15   (20060101)   B32B   3/24   (20060101)   C08J   5/18   (20060101)  
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Assistant Examiner
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Parent Case
This application is a continuation of application Ser. No. 08/259,397 filed on Jun. 14, 1994 now abandoned.
USPTO Field of Search
604/358   604/370   604/378   604/383   604/385.1   428/131   428/132   428/137   428/156  
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Description
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