Extract from the Register of European Patents

EP About this file: EP0564048

EP0564048 - A method of chemically cross-linking sterically hindered epoxidized polymers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.05.1998
Database last updated on 28.03.2026
Most recent event   Tooltip22.05.1998No opposition filed within time limitpublished on 08.07.1998 [1998/28]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1993/40]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Inventor(s)01 / Bening, Robert Charles
21807 Cayman Point Drive
Katy, Texas 77450 / US
02 / Erickson, James Robert
20715 Chapel Glen
Katy, Texas 77450 / US
03 / St. Clair, David John
13831 Queensbury
Houston, Texas 77079 / US
[1993/40]
Application number, filing date93200944.201.04.1993
[1993/40]
Priority number, dateUS1992086364403.04.1992         Original published format: US 863644
[1993/40]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0564048
Date:06.10.1993
Language:EN
[1993/40]
Type: A3 Search report 
No.:EP0564048
Date:03.11.1993
Language:EN
[1993/44]
Type: B1 Patent specification 
No.:EP0564048
Date:16.07.1997
Language:EN
[1997/29]
Search report(s)(Supplementary) European search report - dispatched on:EP13.09.1993
ClassificationIPC:C08F8/30, C08C19/40, C08G81/02, C08C19/22
[1993/43]
CPC:
C08G59/027 (EP,KR); C08C19/40 (EP,KR); C08F8/08 (KR);
C08F8/30 (EP,KR); C08L61/20 (KR); C08L63/08 (EP,KR)
C-Set:
C08L63/08, C08L61/20 (EP)
Former IPC [1993/40]C08F8/30, C08C19/40, C08G81/02
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1993/40]
TitleGerman:Verfahren zur chemischen Vernetzung von sterisch gehinderten epoxydierten Polymeren[1993/40]
English:A method of chemically cross-linking sterically hindered epoxidized polymers[1993/40]
French:Procédé de réticulation chimique de polymères époxydés à empêchement stérique[1993/40]
Examination procedure12.04.1994Examination requested  [1994/25]
07.05.1996Despatch of a communication from the examining division (Time limit: M04)
16.09.1996Reply to a communication from the examining division
31.10.1996Despatch of communication of intention to grant (Approval: Yes)
13.12.1996Communication of intention to grant the patent
10.03.1997Fee for grant paid
10.03.1997Fee for publishing/printing paid
Opposition(s)17.04.1998No opposition filed within time limit [1998/28]
Fees paidRenewal fee
27.04.1995Renewal fee patent year 03
26.04.1996Renewal fee patent year 04
28.04.1997Renewal fee patent year 05
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Documents cited:Search[A] JP61138205  
 [A]   CHEMICAL ABSTRACTS, vol. 92, no. 2, January 1980, Columbus, Ohio, US; abstract no. 7355c, TAKIZAWA, MINORU 'MANUFACTURE OF HYDROPHILIC POLYMERS' page 30 ;column 1 ; [A]
 [A]   PATENT ABSTRACTS OF JAPAN vol. 10, no. 345 (C-386)(2401) 20 November 1986 & JP-A-61 138 205 ( UBE IND LTD ) 5 July 1986 [A]
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