File binder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 14, 2000
Grant Date -
N/A
app pub date -
Feb 23, 1998
filing date -
Mar 27, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An improvement for a file binder of the type having a back portion (4) made of a porous or nearly porous material, for instance cardboard, wherein the back portion has an inner side on which an amount of glue (6) which melts under the influence of head is provided, includes a layer of substantially non-porous material (5) disposed between the back portion and the glue.
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