IP Library › Granted Patent US 6,631,727
Granted Patent Utility
US 6,631,727 · Confirmation No. 9391

METHOD OF CLEANING AND/OR REGENERATING WHOLLY OR PARTIALLY DE-ACTIVATED CATALYSTS OF STACK-GAS NITROGEN SCRUBBING

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2007-09-04 PA.. Power of Attorney 2 View
2007-09-04 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-20 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-20 LET. Miscellaneous Incoming Letter 1 View
2003-08-20 DRW Drawings-only black and white line drawings 3 View
2001-07-16 ABST Abstract 1 View
2001-04-27 TRNA Transmittal of New Application 2 View
2001-04-27 A.PE Preliminary Amendment 21 View
2001-04-27 SPEC Specification 9 View
2001-04-27 CLM Claims 3 View
2001-04-27 DRW Drawings-only black and white line drawings 3 View
2001-04-27 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,631,727
App. No.
09/842,621
Filed
2001-04-27
Granted
2003-10-14
Pub. No.
US20020006860A1
Art Unit
1746
PTA
-59 days