IP Library Patent Application 10303447
Patent Application Utility
App. No. 10/303,447 · Confirmation No. 4344

APPARATUS AND METHOD FOR CLEANING MEMBRANE FILTRATION MODULES

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Code Description Pages PDF
2003-09-02 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-09-02 LET. Miscellaneous Incoming Letter 1 View
2002-11-21 TRNA Transmittal of New Application 2 View
2002-11-21 A.PE Preliminary Amendment 4 View
2002-11-21 SPEC Specification 15 View
2002-11-21 CLM Claims 7 View
2002-11-21 ABST Abstract 1 View
2002-11-21 DRW Drawings-only black and white line drawings 7 View
2002-11-21 OATH Oath or Declaration filed 2 View
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Quick Facts
App. No.
10/303,447
Filed
2002-11-21
Granted
2003-11-04
Pub. No.
US20030075504A1
Art Unit
1723
PTA
0 days