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App. No. 09/939,085 · Confirmation No. 7185

SYSTEM AND METHOD FOR WITHDRAWING PERMEATE THROUGH A FILTER AND FOR CLEANING THE FILTER IN SITU

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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2003-07-23 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-23 LET. Miscellaneous Incoming Letter 4 View
2003-06-16 IDS Information Disclosure Statement (IDS) Form (SB08) 4 View
2003-06-16 LET. Miscellaneous Incoming Letter 2 View
2001-09-28 TRNA Transmittal of New Application 2 View
2001-09-28 DRW Drawings-only black and white line drawings 6 View
2001-08-24 TRNA Transmittal of New Application 4 View
2001-08-24 A.PE Preliminary Amendment 2 View
2001-08-24 SPEC Specification 23 View
2001-08-24 CLM Claims 4 View
2001-08-24 ABST Abstract 1 View
2001-08-24 DRW Drawings-only black and white line drawings 6 View
2001-08-24 OATH Oath or Declaration filed 3 View
2001-08-24 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
App. No.
09/939,085
Filed
2001-08-24
Granted
2003-09-30
Pub. No.
US20020175121A1
Art Unit
1723
PTA
-13 days