IP Library › Granted Patent US 6,706,897
Granted Patent Utility
US 6,706,897 · Confirmation No. 4032

METHOD FOR PREPARING OXYDIPHTHALIC ANHYDRIDES USING GUANIDINIUM SALT AS CATALYST

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2014-03-17 OATH Oath or Declaration filed 135 View
2004-01-21 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-10-17 NOA Notice of Allowance and Fees Due (PTOL-85) 4 View
2003-10-17 NOA Notice of Allowance and Fees Due (PTOL-85) 2 View
2003-10-17 1449 List of References cited by applicant and considered by examiner 1 View
2003-10-17 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2003-10-17 SRFW Search information including classification, databases and other search related notes 1 View
2003-10-17 FWCLM Index of Claims 1 View
2003-10-09 SRNT Examiner's search strategy and results 10 View
2003-02-24 TRNA Transmittal of New Application 2 View
2003-02-24 SPEC Specification 6 View
2003-02-24 CLM Claims 2 View
2003-02-24 ABST Abstract 1 View
2003-02-24 OATH Oath or Declaration filed 2 View
2003-02-24 WFEE Fee Worksheet (SB06) 1 View
2003-02-24 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2003-02-24 TRNA Transmittal of New Application 1 View
2003-02-24 SPEC Specification 6 View
2003-02-24 CLM Claims 2 View
2003-02-24 ABST Abstract 1 View
2003-02-24 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,706,897
App. No.
10/373,430
Filed
2003-02-24
Granted
2004-03-16
Art Unit
1626
PTA
-4 days