IP Library › Granted Patent US 6,656,440
Granted Patent Utility PCT National Stage
US 6,656,440 · Confirmation No. 4203

EXHAUST GAS DESULFURIZING METHOD AND SYSTEM THEREFOR

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2003-09-29 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-09-05 TRNA Transmittal of New Application 2 View
2001-09-05 A.PE Preliminary Amendment 6 View
2001-09-05 SPEC Specification 26 View
2001-09-05 CLM Claims 4 View
2001-09-05 ABST Abstract 1 View
2001-09-05 DRW Drawings-only black and white line drawings 7 View
2001-09-05 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,656,440
App. No.
09/914,778
Filed
2001-09-05
Granted
2003-12-02
Pub. No.
US20020168311A1
Art Unit
1754
PTA
-2 days