Extended life filter apparatus
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United States of America Patent
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Sep 16, 1997
Grant Date -
N/A
app pub date -
Apr 29, 1996
filing date -
Apr 29, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A particulate filter for a fluid stream being of preselected thickness with progressively increasing fibrous density from the upstream face toward the downstream face, the filter having a transversely and uniformly extending planar sheet-like adhesive barrier at a preselected location and quantity between the upstream and downstream faces thereof.
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