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Extract from the Register of European Patents

EP About this file: EP0578318

EP0578318 - Process for the formation of pentaerythritol-based phosphorus heterocycles [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  11.04.1997
Database last updated on 19.10.2024
Most recent event   Tooltip06.06.2008Change - representativepublished on 09.07.2008  [2008/28]
Applicant(s)For all designated states
Akzo Nobel N.V.
Velperweg 76
6824 BM Arnhem / NL
[N/P]
Former [1994/26]For all designated states
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Former [1994/02]For all designated states
AKZO N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Inventor(s)01 / Telschow, Jeffrey Earl
416 Benedict Avenue
Tarrytown, New York 10591 / US
02 / Weil, Edward David
6 Amherst Drive
Hastings-on-Hudson, New York 10706 / US
[1994/02]
Representative(s)Schalkwijk, Pieter Cornelis, et al
Akzo Nobel N.V.
Intellectual Property Department
P.O. Box 9300
6800 SB Arnhem / NL
[N/P]
Former [2008/28]Schalkwijk, Pieter Cornelis, et al
AKZO NOBEL N.V. Intellectual Property Department PO Box 9300
6800 SB Arnhem / NL
Former [1994/02]Schalkwijk, Pieter Cornelis, c.s., et al
AKZO Patent Department (Dept. APTA) Velperweg 76 P.O. Box 9300
NL-6800 SB Arnhem / NL
Application number, filing date93201954.005.07.1993
[1994/02]
Priority number, dateUS1992091186810.07.1992         Original published format: US 911868
[1994/02]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0578318
Date:12.01.1994
Language:EN
[1994/02]
Search report(s)(Supplementary) European search report - dispatched on:EP04.10.1993
ClassificationIPC:C07F9/6574
[1994/02]
CPC:
C07F9/65746 (EP,US); C07F9/65748 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1994/02]
TitleGerman:Verfahren zur Herstellung von Pentaerythritol-Abkommenden Phosphor-Heteroringen[1994/02]
English:Process for the formation of pentaerythritol-based phosphorus heterocycles[1994/02]
French:Procédé pour la formation d'hétérocycles phosphorés à base de pentaerythritol[1994/02]
Examination procedure14.04.1994Examination requested  [1997/06]
20.12.1996Despatch of communication of intention to grant (Approval: )
24.03.1997Application withdrawn by applicant  [1997/22]
Fees paidRenewal fee
29.05.1995Renewal fee patent year 03
30.05.1996Renewal fee patent year 04
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Documents cited:Search[AD]US4454064  (HALPERN YUVAL [US], et al)
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.