IP Library Granted Patent US 6,720,291
Granted Patent Utility
US 6,720,291 · Confirmation No. 9604

WELL TREATMENT COMPOSITION FOR USE IN IRON-RICH ENVIRONMENTS

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Code Description Pages PDF
2015-07-13 IMIS Miscellaneous Internal Document 1 View
2009-02-06 C.AD Change of Address 2 View
2009-02-06 LET. Miscellaneous Incoming Letter 1 View
2009-02-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2004-02-25 IFEE Issue Fee Payment (PTO-85B) 3 View
2001-08-23 TRNA Transmittal of New Application 2 View
2001-08-23 SPEC Specification 8 View
2001-08-23 CLM Claims 11 View
2001-08-23 ABST Abstract 1 View
2001-08-23 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,720,291
App. No.
09/935,808
Filed
2001-08-23
Granted
2004-04-13
Pub. No.
US20030041778A1
Art Unit
1712
PTA
-101 days