IP Library › Granted Patent US 6,770,189
Granted Patent Utility
US 6,770,189 · Confirmation No. 6221

PROCESS FOR IMPROVING THE PURITY OF QUATERNARY AMMONIUM HYDROXIDES BY ELECTROLYSIS

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2025-05-23 OATH Oath or Declaration filed 11 View
2004-08-09 LET. Miscellaneous Incoming Letter 3 View
2004-06-18 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-03-23 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-03-23 NOA Notice of Allowance and Fees Due (PTOL-85) 3 View
2004-03-23 FWCLM Index of Claims 1 View
2004-03-23 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2004-03-23 SRFW Search information including classification, databases and other search related notes 1 View
2004-03-18 SRNT Examiner's search strategy and results 1 View
2004-01-29 A... Amendment/Request for Reconsideration-After Non-Final Rejection 2 View
2004-01-29 REM Applicant Arguments/Remarks Made in an Amendment 6 View
2003-09-25 CTNF Non-Final Rejection 10 View
2003-09-25 892 List of references cited by examiner 1 View
2003-09-25 1449 List of References cited by applicant and considered by examiner 1 View
2003-09-11 SRNT Examiner's search strategy and results 1 View
2002-02-13 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2002-01-07 PEFR Applicant Response to Pre-Exam Formalities Notice 3 View
2002-01-07 OATH Oath or Declaration filed 3 View
2002-01-07 FRPR Certified Copy of Foreign Priority Application 21 View
2001-11-19 PEFN Pre-Exam Formalities Notice 1 View
2001-10-16 TRNA Transmittal of New Application 2 View
2001-10-16 SPEC Specification 21 View
2001-10-16 CLM Claims 3 View
2001-10-16 ABST Abstract 1 View
2001-10-16 OATH Oath or Declaration filed 3 View
2001-10-16 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2001-10-16 SRFW Search information including classification, databases and other search related notes 1 View
2001-10-16 FWCLM Index of Claims 1 View
2001-10-16 TRNA Transmittal of New Application 2 View
2001-10-16 SPEC Specification 21 View
2001-10-16 CLM Claims 3 View
2001-10-16 ABST Abstract 1 View
2001-10-16 OATH Oath or Declaration filed 3 View
2001-10-16 WFEE Fee Worksheet (SB06) 1 View
2001-10-16 WFEE Fee Worksheet (SB06) 1 View
2001-10-16 WCLM Claims Worksheet (PTO-2022) 1 View
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Quick Facts
Patent No.
US 6,770,189
App. No.
09/981,140
Filed
2001-10-16
Granted
2004-08-03
Pub. No.
US20020079233A1
Art Unit
1753
PTA
-63 days