Extract from the Register of European Patents

EP About this file: EP0645413

EP0645413 - Non-linear optically active polycarbonate [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  27.11.1998
Database last updated on 10.03.2026
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 [1995/13]For all designated states
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Inventor(s)01 / Boonstra, Tjerk Oedse
Ossendrechtpad 6
NL-6844 JJ Arnhem / NL
02 / Wiersum, Ulfert Elle
Alteveerselaan 6
NL-6881 AV Velp / NL
[1995/13]
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 [1995/13]Schalkwijk, Pieter Cornelis, et al
AKZO NOBEL N.V. Patent Department (Dept. APTA) P.O. Box 9300
NL-6800 SB Arnhem / NL
Application number, filing date94202733.522.09.1994
[1995/13]
Priority number, dateNL1993000167929.09.1993         Original published format: NL 9301679
[1995/13]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0645413
Date:29.03.1995
Language:EN
[1995/13]
Search report(s)(Supplementary) European search report - dispatched on:EP30.01.1995
ClassificationIPC:C08G64/16, G02F1/35
[1995/13]
CPC:
G02F1/3617 (EP,KR,US); C08G63/6826 (EP,KR,US); C08G18/678 (EP,KR,US);
C08G18/773 (EP,KR,US); C08G18/83 (EP,KR,US); C08G63/68 (EP,US);
Y10T428/31507 (EP,US) (-)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [1995/13]
TitleGerman:Nichtlineare optische aktive Polycarbonate[1995/13]
English:Non-linear optically active polycarbonate[1995/13]
French:Polycarbonate actif en optique non linéaire[1995/13]
Examination procedure06.07.1995Examination requested  [1995/35]
15.04.1997Despatch of a communication from the examining division (Time limit: M04)
25.07.1997Reply to a communication from the examining division
09.12.1997Despatch of a communication from the examining division (Time limit: M07)
21.07.1998Application deemed to be withdrawn, date of legal effect  [1999/02]
19.08.1998Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1999/02]
Fees paidRenewal fee
01.08.1996Renewal fee patent year 03
31.07.1997Renewal fee patent year 04
01.08.1998Renewal fee patent year 05
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