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Extract from the Register of European Patents

EP About this file: EP0235048

EP0235048 - Heat vulcanisable organopolysiloxane elstomer resistant to reversion and oils [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  06.06.1994
Database last updated on 03.04.2025
Most recent event   Tooltip26.06.2009Change - representativepublished on 29.07.2009  [2009/31]
Applicant(s)For all designated states
RHONE-POULENC CHIMIE
25, Quai Paul Doumer
92408 Courbevoie Cédex / FR
[N/P]
Former [1987/41]For all designated states
RHONE-POULENC CHIMIE
25, Quai Paul Doumer
F-92408 Courbevoie Cédex / FR
Former [1987/36]For all designated states
RHONE-POULENC SPECIALITES CHIMIQUES
"Les Miroirs" 18, Avenue d'Alsace
F-92400 Courbevoie / FR
Inventor(s)01 / Lagarde, Robert
5, rue des Lilas
F-69320 Feyzin / FR
[1987/36]
Representative(s)Trolliet, Maurice, et al
RHONE-POULENC INTERSERVICES
Serviice Brevets Chimie
Centre de Recherches de Saint-Fons
B.P. 62
69192 Saint-Fons Cedex / FR
[N/P]
Former [2009/31]Trolliet, Maurice, et al
RHONE-POULENC INTERSERVICES Serviice Brevets Chimie Centre de Recherches de Saint-Fons B.P. 62
69192 Saint-Fons Cedex / FR
Former [1990/42]Trolliet, Maurice, et al
RHONE-POULENC CHIMIE Service Brevets Chimie Centre de Recherches des Carrières B.P. 62
F-69192 Saint-Fons Cédex / FR
Former [1987/36]Seugnet, Jean Louis
RHONE-POULENC INTERSERVICES Service Brevets Chimie Centre de Recherches de Saint-Fons B.P. 62
F-69192 Saint-Fons Cédex / FR
Application number, filing date87420006.608.01.1987
[1987/36]
Priority number, dateFR1986000040309.01.1986         Original published format: FR 8600403
[1987/36]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0235048
Date:02.09.1987
Language:FR
[1987/36]
Type: B1 Patent specification 
No.:EP0235048
Date:07.11.1990
Language:FR
[1990/45]
Search report(s)(Supplementary) European search report - dispatched on:EP07.07.1987
ClassificationIPC:C08L83/04, C08K5/54, C08K5/14, C08K3/22
[1987/36]
CPC:
C08K5/14 (EP,US); C08K3/22 (EP,US); C08K5/5425 (EP,US)
C-Set:
C08K3/22, C08L83/04 (EP,US);
C08K5/14, C08L83/04 (US,EP);
C08K5/5425, C08L83/04 (US,EP)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1987/36]
TitleGerman:Hitzevulkanisierbare Organopolysiloxanzusammensetzung, die gegen Reversion und Öle beständig ist[1987/36]
English:Heat vulcanisable organopolysiloxane elstomer resistant to reversion and oils[1987/36]
French:Composition organopolysiloxane élastomère vulcanisable à chaud, à resistance à la réversion et à la tenue aux huiles améliorées[1987/36]
Examination procedure31.12.1987Examination requested  [1988/10]
13.09.1989Despatch of a communication from the examining division (Time limit: M04)
28.12.1989Reply to a communication from the examining division
20.03.1990Despatch of communication of intention to grant (Approval: Yes)
17.04.1990Communication of intention to grant the patent
28.06.1990Fee for grant paid
28.06.1990Fee for publishing/printing paid
Opposition(s)Opponent(s)01  13.06.1991  08.07.1991  ADMISSIBLE
Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern
Bayerwerk
D-51368 Leverkusen / DE
 [N/P]
Former [1991/32]
Opponent(s)01  13.06.1991  08.07.1991  ADMISSIBLE
Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern
Bayerwerk
D-51368 Leverkusen / DE
20.09.1991Invitation to proprietor to file observations on the notice of opposition
12.03.1992Reply of patent proprietor to notice(s) of opposition
26.03.1992Communication of observations of patent proprietor (Time limit: M02)
29.05.1992Reply of parties involved to observations of patent proprietor
02.11.1992Date of despatch of rejection of opposition
16.03.1994Legal effect of rejection of opposition [1994/30]
Appeal following opposition11.12.1992Appeal received No.  T1096/92
18.02.1993Statement of grounds filed
16.03.1994Result of appeal procedure: appeal of the opponent was rejected
16.03.1994Date of oral proceedings
25.03.1994Minutes of the oral proceedings despatched
Fees paidRenewal fee
27.10.1988Renewal fee patent year 03
10.11.1989Renewal fee patent year 04
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Lapses during opposition  TooltipLU08.01.1993
BE31.01.1993
GR31.07.1993
NL01.08.1993
[2004/38]
Former [2002/24]BE31.01.1993
LU31.01.1993
GR31.07.1993
NL01.08.1993
Former [2000/06]BE31.01.1993
LU31.01.1993
NL01.08.1993
Former [1993/52]BE31.01.1993
NL01.08.1993
Former [1993/51]BE31.01.1993
Documents cited:Search[Y]US3865778  (CHRISTIE GEORGE);
 [Y]GB2030582  (DOW CORNING);
 [Y]GB2066277  (GEN ELECTRIC);
 [Y]EP0062427  (DOW CORNING [US])
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.