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Extract from the Register of European Patents

EP About this file: EP0711780

EP0711780 - Process for the preparation of liquid crystalline polyorganosiloxanes containing (meth-)acryloxy groups [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.11.2000
Database last updated on 24.04.2024
Most recent event   Tooltip03.11.2000No opposition filed within time limitpublished on 20.12.2000 [2000/51]
Applicant(s)For all designated states
Consortium für elektrochemische Industrie GmbH
Zielstattstrasse 20
81379 München / DE
[N/P]
Former [2000/01]For all designated states
Consortium für elektrochemische Industrie GmbH
Zielstattstrasse 20
81379 München / DE
Former [1996/20]For all designated states
Consortium für elektrochemische Industrie GmbH
Zielstattstrasse 20
D-81379 München / DE
Inventor(s)01 / Stohrer, Jürgen, Dr.
Becker-Gundahl-Str. 19
D-81479 München / DE
02 / Kreuzer, Franz-Heinrich, Dr.
Josef-Gerstner-Strasse 14 d
D-82152 Martinsried / DE
03 / Luckas, Hans-Joachim
Gilmstrasse 57f
D-81377 München / DE
[1996/20]
Representative(s)Fritz, Helmut, et al
Wacker Chemie AG
Zentralbereich Patente, Marken und Lizenzen
Hanns-Seidel-Platz 4
81737 München / DE
[N/P]
Former [1996/20]Fritz, Helmut, Dr., et al
Wacker-Chemie GmbH, Zentralabteilung Patente, Marken und Lizenzen, Hanns-Seidel-Platz 4
D-81737 München / DE
Application number, filing date95117650.209.11.1995
[1996/20]
Priority number, dateDE1994444020910.11.1994         Original published format: DE 4440209
[1996/20]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0711780
Date:15.05.1996
Language:DE
[1996/20]
Type: B1 Patent specification 
No.:EP0711780
Date:05.01.2000
Language:DE
[2000/01]
Search report(s)(Supplementary) European search report - dispatched on:EP23.01.1996
ClassificationIPC:C07F7/21, C07F7/08, C08G77/38, C09K19/38, C09K19/40, G02F1/13, G01N30/48
[1996/20]
CPC:
C07F7/0838 (EP,US); C07F7/0879 (EP,US); C07F7/21 (EP,US);
C08G77/38 (EP,US); C09K19/408 (EP,US)
Designated contracting statesBE,   DE,   FR,   GB,   NL [1996/20]
TitleGerman:Verfahren zur Herstellung (Meth)acryloxygruppen enthaltender flüssigkristalliner Polyorganosiloxane[1996/20]
English:Process for the preparation of liquid crystalline polyorganosiloxanes containing (meth-)acryloxy groups[1996/20]
French:Procédé de préparation de polyorganosiloxanes liquides cristallines contenant des groupements (méth-)acryloxiques[1996/20]
Examination procedure09.11.1995Examination requested  [1996/20]
16.10.1998Despatch of a communication from the examining division (Time limit: M04)
26.11.1998Reply to a communication from the examining division
16.02.1999Despatch of communication of intention to grant (Approval: Yes)
08.06.1999Communication of intention to grant the patent
19.08.1999Fee for grant paid
19.08.1999Fee for publishing/printing paid
Opposition(s)06.10.2000No opposition filed within time limit [2000/51]
Fees paidRenewal fee
20.11.1997Renewal fee patent year 03
22.10.1998Renewal fee patent year 04
21.10.1999Renewal fee patent year 05
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Documents cited:Search[DA]US5211877  (ANDREJEWSKI DIRK [DE], et al) [DA] 1-8 * column W *;
 [A]EP0562584  (DOW CORNING TORAY SILICONE [JP]) [A] 1-8 * column W *
by applicantUS4388453
 US5211877
 DE3110048
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.