Filter medium
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United States of America Patent
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-
Mar 12, 2013
Grant Date -
Oct 23, 2008
app pub date -
Sep 15, 2004
filing date -
Sep 19, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A filter medium includes at least one filter membrane (10) having a fabric ply (12) as a supporting and protective layer. At least one additional filter membrane (14) with another fabric ply (16) as a supporting and protective layer is also provided. A third fabric ply (18) extends between both adjacent filter membranes (10, 14). Both adjacent filter membranes (10, 14) are connected together by the threads (26) of the other two plies (12, 16) which reach through to the third ply (18).
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