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Extract from the Register of European Patents

EP About this file: EP0470753

EP0470753 - Alkoxy-functional organopolysiloxanes and processes for preparing them [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.04.1998
Database last updated on 31.08.2024
Most recent event   Tooltip17.04.1998No opposition filed within time limitpublished on 03.06.1998 [1998/23]
Applicant(s)For all designated states
Shin-Etsu Chemical Co., Ltd.
6-1, Otemachi 2-chome Chiyoda-ku
Tokyo / JP
[N/P]
Former [1992/07]For all designated states
SHIN-ETSU CHEMICAL CO., LTD.
6-1, Ohtemachi 2-chome
Chiyoda-ku Tokyo / JP
Inventor(s)01 / Arai, Masatoshi
11-11, Isobe 4-chome
Annaka-shi, Gunma-ken / JP
[1992/07]
Representative(s)Stoner, Gerard Patrick, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[N/P]
Former [1992/07]Stoner, Gerard Patrick, et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP / GB
Application number, filing date91306972.030.07.1991
[1992/07]
Priority number, dateJP1990020960008.08.1990         Original published format: JP 20960090
[1992/07]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0470753
Date:12.02.1992
Language:EN
[1992/07]
Type: A3 Search report 
No.:EP0470753
Date:23.09.1992
Language:EN
[1992/39]
Type: B1 Patent specification 
No.:EP0470753
Date:11.06.1997
Language:EN
[1997/24]
Search report(s)(Supplementary) European search report - dispatched on:EP04.08.1992
ClassificationIPC:C08G77/38
[1992/07]
CPC:
C07F7/0838 (EP,US); C07F7/0874 (EP,US); C08G77/045 (EP,US);
C08G77/18 (EP,US)
Designated contracting statesDE,   FR,   GB [1992/07]
TitleGerman:Alkoxyfunktionelle Organopolysiloxane und Verfahren zu ihrer Herstellung[1992/07]
English:Alkoxy-functional organopolysiloxanes and processes for preparing them[1992/07]
French:Organopolysiloxanes à fonction alcoxy et leurs procédés de préparation[1992/07]
Examination procedure08.02.1993Examination requested  [1993/15]
18.03.1996Despatch of a communication from the examining division (Time limit: M06)
02.08.1996Reply to a communication from the examining division
29.10.1996Despatch of communication of intention to grant (Approval: Yes)
12.12.1996Communication of intention to grant the patent
03.03.1997Fee for grant paid
03.03.1997Fee for publishing/printing paid
Opposition(s)12.03.1998No opposition filed within time limit [1998/23]
Fees paidRenewal fee
26.07.1993Renewal fee patent year 03
22.07.1994Renewal fee patent year 04
21.07.1995Renewal fee patent year 05
23.07.1996Renewal fee patent year 06
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Documents cited:Search[A]US3755070  (BEY A, et al);
 [X]EP0354138  (RHONE POULENC CHIMIE [FR])
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.