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Extract from the Register of European Patents

EP About this file: EP0407414

EP0407414 - CATALYST FOR GROUP TRANSFER POLYMERIZATION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.11.1993
Database last updated on 25.09.2024
Most recent event   Tooltip27.11.1993No opposition filed within time limitpublished on 19.01.1994 [1994/03]
Applicant(s)For all designated states
E. I. du Pont de Nemours and Company
1007 Market Street
Wilmington, DE 19898 / US
[N/P]
Former [1991/03]For all designated states
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington Delaware 19898 / US
Inventor(s)01 / DICKER, Ira, Bernard
1016 Jeffrey Road
Wilmington, DE 19810 / US
[1991/03]
Representative(s)Jones, Alan John, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
[N/P]
Former [1991/03]Jones, Alan John, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
Application number, filing date89903556.215.03.1989
[1991/03]
WO1989US00972
Priority number, dateUS1988017680801.04.1988         Original published format: US 176808
[1991/03]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO8909236
Date:05.10.1989
Language:EN
[1989/24]
Type: A1 Application with search report 
No.:EP0407414
Date:16.01.1991
Language:EN
The application published by WIPO in one of the EPO official languages on 05.10.1989 takes the place of the publication of the European patent application.
[1991/03]
Type: B1 Patent specification 
No.:EP0407414
Date:27.01.1993
Language:EN
[1993/04]
Search report(s)International search report - published on:EP05.10.1989
ClassificationIPC:C08F4/42, C08F20/00, C08F22/40
[1991/03]
CPC:
C08F4/42 (EP,US)
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL [1991/03]
TitleGerman:KATALYSATOR FÜR GRUPPENÜBERTRAGUNGSPOLYMERISIERUNG[1991/03]
English:CATALYST FOR GROUP TRANSFER POLYMERIZATION[1991/03]
French:CATALYSEUR POUR POLYMERISATION PAR TRANSFERT DE GROUPE[1991/03]
Entry into regional phase21.09.1990National basic fee paid 
21.09.1990Designation fee(s) paid 
21.09.1990Examination fee paid 
Examination procedure13.09.1989Request for preliminary examination filed
International Preliminary Examining Authority: DE
21.09.1990Examination requested  [1991/03]
28.05.1991Despatch of a communication from the examining division (Time limit: M04)
18.09.1991Reply to a communication from the examining division
24.03.1992Despatch of communication of intention to grant (Approval: Yes)
23.07.1992Communication of intention to grant the patent
04.09.1992Fee for grant paid
04.09.1992Fee for publishing/printing paid
Opposition(s)28.10.1993No opposition filed within time limit [1994/03]
Fees paidRenewal fee
17.12.1990Renewal fee patent year 03
13.03.1992Renewal fee patent year 04
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Cited inInternational searchEP0083018  [ ] (BAYER AG [DE]);
 EP0145263  [ ] (DU PONT [US]);
 US4588795  [ ] (DICKER IRA B [US], et al);
 EP0190631  [ ] (BAYER AG [DE])
ExaminationUS4581428
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.