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Extract from the Register of European Patents

EP About this file: EP0335214

EP0335214 - Polycarbonate [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  05.09.1997
Database last updated on 21.01.2025
Most recent event   Tooltip05.09.1997Opposition rejectedpublished on 22.10.1997 [1997/43]
Applicant(s)For all designated states
IDEMITSU PETROCHEMICAL CO. LTD.
1-1, Marunouchi 3-chome Chiyoda-ku
Tokyo 100 / JP
[1989/40]
Inventor(s)01 / Masaya, Okamoto Idemitsu Petrochemical Co., Ltd.
1-1, Anesakikaigan
Ichihara-shi Chiba-ken / JP
02 / Hiroshi, Kurokawa Idemitsu Petrochemical Co., Ltd.
1-1, Anesakikaigan
Ichihara-shi Chiba-ken / JP
[1989/40]
Representative(s)Gille Hrabal Partnerschaftsgesellschaft mbB Patentanwälte
Brucknerstraße 20
40593 Düsseldorf / DE
[N/P]
Former [1989/40]Türk, Gille, Hrabal, Leifert
Brucknerstrasse 20
D-40593 Düsseldorf / DE
Application number, filing date89104909.018.03.1989
[1989/40]
Priority number, dateJP1988007198428.03.1988         Original published format: JP 7198488
JP1988010261527.04.1988         Original published format: JP 10261588
[1989/40]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0335214
Date:04.10.1989
Language:EN
[1989/40]
Type: A3 Search report 
No.:EP0335214
Date:10.10.1990
Language:EN
[1990/41]
Type: B1 Patent specification 
No.:EP0335214
Date:08.12.1993
Language:EN
[1993/49]
Search report(s)(Supplementary) European search report - dispatched on:EP22.08.1990
ClassificationIPC:C08G64/14
[1993/49]
CPC:
C08G64/14 (EP,US); C08F224/00 (KR); C08G64/00 (KR);
C08L69/00 (EP,US)
C-Set:
C08L69/00, C08L69/00 (EP,US)
Former IPC [1989/40]C08G63/62
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1989/40]
TitleGerman:Polycarbonat[1989/40]
English:Polycarbonate[1989/40]
French:Polycarbonate[1989/40]
Examination procedure15.12.1990Examination requested  [1991/06]
20.01.1993Despatch of communication of intention to grant (Approval: Yes)
20.04.1993Communication of intention to grant the patent
17.07.1993Fee for grant paid
17.07.1993Fee for publishing/printing paid
Opposition(s)Opponent(s)01  23.08.1994  14.09.1994  ADMISSIBLE
Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern
Bayerwerk
D-51368 Leverkusen / DE
 [N/P]
Former [1994/42]
Opponent(s)01  23.08.1994  14.09.1994  ADMISSIBLE
Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern
Bayerwerk
D-51368 Leverkusen / DE
14.10.1994Invitation to proprietor to file observations on the notice of opposition
07.02.1995Reply of patent proprietor to notice(s) of opposition
21.02.1995Communication of observations of patent proprietor (Time limit: M06)
16.05.1995Reply of parties involved to observations of patent proprietor
28.05.1997Date of despatch of rejection of opposition
07.06.1997Legal effect of rejection of opposition [1997/43]
Fees paidRenewal fee
14.12.1990Renewal fee patent year 03
20.03.1992Renewal fee patent year 04
26.03.1993Renewal fee patent year 05
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Lapses during opposition  TooltipCH08.12.1993
LI08.12.1993
[1994/31]
Documents cited:Search[A]JP57133145  ;
 [Y]EP0010602  (BAYER AG [DE]);
 [Y]EP0093914  (IDEMITSU KOSAN CO [JP]);
 [AP]EP0293891  (IDEMITSU PETROCHEMICAL CO [JP])
 [A]  - PATENT ABSTRACTS OF JAPAN. vol. 6, no. 231 (C-135)(1109) 17 November 1982; & JP-A-57 133 145 (IDEMITSU KOSAN K.K.) 12-12-1981, & JP57133145 A 19821117
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.