IP Library › Granted Patent US 6,684,631
Granted Patent Utility
US 6,684,631 · Confirmation No. 7006

METHOD AND SYSTEM FOR REDUCING NOX TAILPIPE EMISSIONS OF A LEAN-BURN INTERNAL COMBUSTION ENGINE

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2005-07-13 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-12-12 IFEE Issue Fee Payment (PTO-85B) 3 View
2002-12-18 TRNA Transmittal of New Application 2 View
2002-12-18 A.PE Preliminary Amendment 7 View
2002-12-18 SPEC Specification 19 View
2002-12-18 CLM Claims 4 View
2002-12-18 ABST Abstract 1 View
2002-12-18 DRW Drawings-only black and white line drawings 1 View
2002-12-18 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,684,631
App. No.
10/323,548
Filed
2002-12-18
Granted
2004-02-03
Pub. No.
US20030115856A1
Art Unit
3748
PTA
-1 days