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Extract from the Register of European Patents

EP About this file: EP0626413

EP0626413 - Method for the preparation of diorganopolysiloxanes [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  28.08.1998
Database last updated on 25.09.2024
Most recent event   Tooltip28.08.1998No opposition filed within time limitpublished on 14.10.1998 [1998/42]
Applicant(s)For all designated states
Dow Corning Toray Silicone Company, Limited
Mitsui Bldg. No. 6, 2-3-16, Nihonbashi-Muromachi, Chuo-Ku
Tokyo 103 / JP
[1994/48]
Inventor(s)01 / Okawa, Tadashi, Main Office for Research and Dev.
Toray Dow Corn. Sil. Co. Ltd., 2-2, Chigusa Kaigan
Ichihara-shi, Chiba Prefecture / JP
[1994/48]
Representative(s)Spott, Gottfried
Spott & Weinmiller
Patentanwälte
Fasanenstrasse 159
82008 Unterhaching / DE
[N/P]
Former [1994/48]Spott, Gottfried, Dr.
Sendlinger-Tor-Platz 11
D-80336 München / DE
Application number, filing date94108226.527.05.1994
[1994/48]
Priority number, dateJP1993015105228.05.1993         Original published format: JP 15105293
[1994/48]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0626413
Date:30.11.1994
Language:EN
[1994/48]
Type: A3 Search report 
No.:EP0626413
Date:24.05.1995
Language:EN
[1995/21]
Type: B1 Patent specification 
No.:EP0626413
Date:22.10.1997
Language:EN
[1997/43]
Search report(s)(Supplementary) European search report - dispatched on:EP05.04.1995
ClassificationIPC:C08G77/06, C08G77/08, C08G77/16, C08G77/12
[1994/48]
CPC:
C08G77/06 (EP,US); C08G77/08 (EP,US); C08G77/16 (EP,US)
Designated contracting statesDE,   FR,   GB [1994/48]
TitleGerman:Verfahren zur Herstellung von Diorganopolysiloxanen[1994/48]
English:Method for the preparation of diorganopolysiloxanes[1994/48]
French:Méthode pour préparer des diorganopolysiloxanes[1994/48]
Examination procedure26.07.1995Examination requested  [1995/38]
04.02.1997Despatch of communication of intention to grant (Approval: Yes)
24.04.1997Communication of intention to grant the patent
25.06.1997Fee for grant paid
25.06.1997Fee for publishing/printing paid
Opposition(s)23.07.1998No opposition filed within time limit [1998/42]
Fees paidRenewal fee
05.03.1996Renewal fee patent year 03
28.02.1997Renewal fee patent year 04
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Documents cited:Search[D]JPH0292933  (DOW CORNING TORAY SILICONE);
 [A]EP0362710  (TORAY SILICONE CO [JP]) [A] 1 * claim 1 *;
 [A]EP0455163  (DOW CORNING TORAY SILICONE [JP]) [A] 1* claim 1 *
 [A]  - Die Makromolekulare Chemie 193(1992) Sep,No 9 pp2453-2466, Maschke et al "Synthesis of high- molecular-weight poly(dimethylsiloxane) of uni- form size by anionic polymerization" *whole doc* [A] 1
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.