Extract from the Register of European Patents

EP About this file: EP0135962

EP0135962 - Process for the preparation of branched polymers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.03.1988
Database last updated on 11.04.2026
Most recent event   Tooltip01.03.1988No opposition filed within time limitpublished on 20.04.1988 [1988/16]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1985/14]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Inventor(s)01 / Broekhuis, Antonius Augustinus
Badhuisweg 3
NL-1031 CM Amsterdam / NL
[1985/14]
Representative(s)Aalbers, Onno, et al
P.O. Box 162
2501 AN Den Haag / NL
[N/P]
Former [1985/14]Aalbers, Onno, et al
P.O. Box 162
NL-2501 AN The Hague / NL
Application number, filing date84201255.129.08.1984
[1985/14]
Priority number, dateGB1983002601428.09.1983         Original published format: GB 8326014
[1985/14]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0135962
Date:03.04.1985
Language:EN
[1985/14]
Type: A3 Search report 
No.:EP0135962
Date:15.05.1985
Language:EN
[1985/20]
Type: B1 Patent specification 
No.:EP0135962
Date:29.04.1987
Language:EN
[1987/18]
Search report(s)(Supplementary) European search report - dispatched on:EP13.03.1985
ClassificationIPC:C08F297/04, C08G81/02, C08C19/44
[1985/14]
CPC:
C08G81/022 (EP,US); C08C19/44 (EP,US); C08F297/044 (EP,US)
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL [1985/14]
TitleGerman:Verfahren zur Herstellung von verzweigten Polymeren[1985/25]
English:Process for the preparation of branched polymers[1985/14]
French:Procédé de préparation de polymères ramifiés[1985/25]
Examination procedure29.08.1984Examination requested  [1985/14]
10.07.1986Despatch of communication of intention to grant (Approval: )
23.10.1986Communication of intention to grant the patent
15.12.1986Fee for grant paid
15.12.1986Fee for publishing/printing paid
Opposition(s)30.01.1988No opposition filed within time limit [1988/16]
Fees paidRenewal fee
30.06.1986Renewal fee patent year 03
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Documents cited:Search[YD] JP7867791  
 [YD]   CHEMICAL ABSTRACTS, vol. 89, no. 16, 16th October 1978, page 63, no. 130792h, Columbus, Ohio, US; & JP - A - 78 67 791 (DENKI KAGAKU KOGYO K.K.) 16-06-1978 [YD]
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