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Extract from the Register of European Patents

EP About this file: EP0875536

EP0875536 - Addition reaction-curing silicone elastomer compositions,process for their production, process for the production of composite mouldings and their use [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  23.03.2007
Database last updated on 03.10.2024
Most recent event   Tooltip06.11.2009Change - opposition data/opponents data or that of the opponents representativepublished on 09.12.2009  [2009/50]
Applicant(s)For all designated states
GE Bayer Silicones GmbH & Co. KG
Falkenberg 1
40699 Erkrath / DE
[1998/45]
Inventor(s)01 / Pesch, Klaus-Dieter
Rüttersweg 83
51371 Leverkusen / DE
02 / Rist, Stefan
Imbach 3 B
51381 Leverkusen / DE
03 / Steinberger, Helmut, Dr.
Winand-Rossi-Strasse 36
51375 Leverkusen / DE
04 / Wrobel, Dieter, Dr.
Saarlauterner Strasse 6
51375 Leverkusen / DE
[1998/45]
Representative(s)(deleted)
[2001/43]
Former [1999/29]Leifert, Elmar, Dr., et al
Böhm Rauch Krämer Leifert Burgplatz 21/22
40213 Düsseldorf / DE
Former [1999/27]Leifert, Elmar, Dr., et al
Böhm Rauch Schumacher Krämer & Leifert Burgplatz 21-22
40213 Düsseldorf / DE
Application number, filing date98107410.723.04.1998
[1998/45]
Priority number, dateDE1997101852102.05.1997         Original published format: DE 19718521
[1998/45]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0875536
Date:04.11.1998
Language:DE
[1998/45]
Type: A3 Search report 
No.:EP0875536
Date:28.04.1999
[1999/17]
Type: B1 Patent specification 
No.:EP0875536
Date:24.03.2004
Language:DE
[2004/13]
Search report(s)(Supplementary) European search report - dispatched on:EP17.03.1999
ClassificationIPC:C08L83/04
[1998/45]
CPC data not yet available
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FI,   FR,   GB,   IT,   LI,   SE [2000/02]
Former [1998/45]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Additionsvernetzende Siliconkautschukmischungen, ein Verfahren zu deren Herstellung, Verfahren zur Herstellung von Verbund-Formteilen und deren Verwendung[1998/45]
English:Addition reaction-curing silicone elastomer compositions,process for their production, process for the production of composite mouldings and their use[1998/45]
French:Compositions d'élastomères de silicone réticulables par réaction addition, leur procédé de préparation, procédé de préparation de piéces moulées en matériau composite et leur utilisation[2003/27]
Former [1998/45]Compositons d'élastomères de silicone réticulables par réaction addition, leur procédé de préparation, procédé de préparation de piéces moulées en matériau composite et leur utilisation
Examination procedure16.10.1999Examination requested  [1999/50]
29.07.2003Communication of intention to grant the patent
27.11.2003Fee for grant paid
27.11.2003Fee for publishing/printing paid
Opposition(s)Opponent(s)01  16.12.2004  28.12.2004  ADMISSIBLE
WACKER-CHEMIE GMBH
Hanns-Seidel-Platz 4
D-81737 München / DE
Opponent's representative
Renner, Thomas
Wacker-Chemie GmbH
Patente Marken Lizenzen
Hanns-Seidel-Platz 4
81737 München / DE
 [N/P]
Former [2009/50]
Opponent(s)01  16.12.2004  28.12.2004  ADMISSIBLE
WACKER-CHEMIE GMBH
Hanns-Seidel-Platz 4
D-81737 München / DE
Opponent's representative
Renner, Thomas
Wacker-Chemie GmbH Patente, Marken und Lizenzen Hanns-Seidel-Platz 4
81737 München / DE
Former [2005/06]
Opponent(s)01  16.12.2004   
WACKER-CHEMIE GmbH
Hanns-Seidel-Platz 4
D-81737 München / DE
Opponent's representative
Renner, Thomas, Dr.
Wacker-Chemie GmbH Patente, Marken und Lizenzen Hans-Seidel-Platz 4
D-81727 München / DE
31.01.2005Invitation to proprietor to file observations on the notice of opposition
17.05.2005Reply of patent proprietor to notice(s) of opposition
19.09.2006Date of oral proceedings
26.10.2006Despatch of minutes of oral proceedings
26.10.2006Date of despatch of rejection of opposition
05.11.2006Legal effect of rejection of opposition [2007/17]
Fees paidRenewal fee
22.04.2000Renewal fee patent year 03
30.04.2001Renewal fee patent year 04
29.04.2002Renewal fee patent year 05
24.04.2003Renewal fee patent year 06
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipFI24.03.2004
FR24.03.2004
GB24.03.2004
IT24.03.2004
AT23.04.2004
BE30.04.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
[2008/12]
Former [2006/14]FI24.03.2004
FR24.03.2004
GB24.03.2004
AT23.04.2004
BE30.04.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
Former [2005/51]FI24.03.2004
GB24.03.2004
AT23.04.2004
BE30.04.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
FR11.03.2005
Former [2005/46]FI24.03.2004
GB24.03.2004
BE30.04.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
FR11.03.2005
Former [2005/28]FI24.03.2004
GB24.03.2004
BE30.04.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
Former [2005/21]FI24.03.2004
GB24.03.2004
CH30.04.2004
LI30.04.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
Former [2005/18]FI24.03.2004
GB24.03.2004
DK24.06.2004
SE24.06.2004
ES05.07.2004
Former [2005/02]FI24.03.2004
GB24.03.2004
SE24.06.2004
ES05.07.2004
Former [2005/01]FI24.03.2004
GB24.03.2004
SE24.06.2004
Former [2004/40]FI24.03.2004
SE24.06.2004
Documents cited:Search[A]EP0459464  (DOW CORNING TORAY SILICONE [JP]) [A] 1,3,5,6* example 1 *;
 [DA]EP0503975  (GEN ELECTRIC [US]) [DA] 1-9 * page 2, line 3 - line 5 * * page 2, line 30 - line 34 * * claims 1,10,11 *;
 [A]EP0768342  (DOW CORNING [US]) [A] 1-9 * page 3, line 9 - line 23 * * page 4, line 10 - line 54 * * example - * * claims 1,11 *
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.