IP Library › Granted Patent US 6,647,973
Granted Patent Utility
US 6,647,973 · Confirmation No. 6471

TWO-STAGE FILTRATION ASSEMBLY FOR A DIESEL ENGINE CRANKCASE VENTILATION SYSTEM

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 Code Description Pages PDF
2016-07-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-07-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-07-17 PA.. Power of Attorney 1 View
2016-07-17 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2016-07-17 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-13 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-06-11 TRNA Transmittal of New Application 1 View
2002-06-11 SPEC Specification 9 View
2002-06-11 CLM Claims 5 View
2002-06-11 ABST Abstract 1 View
2002-06-11 DRW Drawings-only black and white line drawings 4 View
2002-06-11 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,647,973
App. No.
10/166,812
Filed
2002-06-11
Granted
2003-11-18
Art Unit
3747
PTA
0 days