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App. No. 09/978,888 · Confirmation No. 5843

DUST FILTER BAG INCLUDING A HIGHLY POROUS BACKING MATERIAL PLY

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Quick Facts
App. No.
09/978,888
Filed
2001-10-16
Granted
2004-03-16
Pub. No.
US20020083690A1
Art Unit
1724
PTA
-79 days