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Extract from the Register of European Patents

EP About this file: EP0331379

EP0331379 - Method of processing carbon fiber precursor from pitchy materials [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.08.1997
Database last updated on 31.08.2024
Most recent event   Tooltip08.08.1997No opposition filed within time limitpublished on 24.09.1997 [1997/39]
Applicant(s)For all designated states
Takemoto Yushi Kabushiki Kaisha
2-5, Minato-machi Gamagouri-shi
Aichi-ken / JP
[N/P]
Former [1989/36]For all designated states
Takemoto Yushi Kabushiki Kaisha
2-5, Minato-machi
Gamagouri-shi Aichi-ken / JP
Inventor(s)01 / Ogiso, Osamu
4-20 Miyanari-cho
Gamagouri-shi Aichi-ken / JP
02 / Uchida, Hideto
101-5 Azagonaka Makimido-cho
Okazaki-shi Aichi-ken / JP
[1996/40]
Former [1989/36]01 / Ogiso, Osamu
4-20 Miyanari-cho
Ganmagouri-shi Aichi-ken / JP
02 / Uchida, Hideto
101-5 Azagonaka Makimido-cho
Okazaki-shi Aichi-ken / JP
Representative(s)Clifford, Frederick Alan, et al
MARKS & CLERK, 57/60 Lincoln's Inn Fields
London WC2A 3LS / GB
[1989/36]
Application number, filing date89301893.724.02.1989
[1989/36]
Priority number, dateJP1988004167124.02.1988         Original published format: JP 4167188
JP1988004167224.02.1988         Original published format: JP 4167288
[1989/36]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0331379
Date:06.09.1989
Language:EN
[1989/36]
Type: A3 Search report 
No.:EP0331379
Date:21.11.1991
Language:EN
[1991/47]
Type: B1 Patent specification 
No.:EP0331379
Date:02.10.1996
Language:EN
[1996/40]
Search report(s)(Supplementary) European search report - dispatched on:EP03.10.1991
ClassificationIPC:D01F9/145
[1996/40]
CPC:
D01F9/155 (EP,US); D01F9/12 (KR); D01F9/15 (EP,US);
D06M15/643 (KR); Y10T428/2933 (EP,US); Y10T428/2962 (EP,US);
Y10T428/30 (EP,US) (-)
Former IPC [1991/47]D01F9/14, D01F9/20
Former IPC [1989/36]D01F9/14
Designated contracting statesDE,   FR,   GB [1989/36]
TitleGerman:Pechartige Materialien als Vorläufer für Kohlenstoffasern[1989/36]
English:Method of processing carbon fiber precursor from pitchy materials[1989/36]
French:Matériaux à base de brai comme précurseur pour des fibres de carbone[1989/36]
Examination procedure26.02.1992Examination requested  [1992/17]
02.09.1994Despatch of a communication from the examining division (Time limit: M06)
08.03.1995Reply to a communication from the examining division
26.05.1995Despatch of a communication from the examining division (Time limit: M01)
21.06.1995Reply to a communication from the examining division
30.11.1995Despatch of communication of intention to grant (Approval: No)
22.03.1996Despatch of communication of intention to grant (Approval: later approval)
28.03.1996Communication of intention to grant the patent
07.06.1996Fee for grant paid
07.06.1996Fee for publishing/printing paid
Opposition(s)03.07.1997No opposition filed within time limit [1997/39]
Fees paidRenewal fee
17.12.1990Renewal fee patent year 03
10.02.1992Renewal fee patent year 04
08.02.1993Renewal fee patent year 05
08.02.1994Renewal fee patent year 06
10.02.1995Renewal fee patent year 07
08.02.1996Renewal fee patent year 08
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Documents cited:Search[AP]JP1026720  ;
 [Y]EP0159120  (TAKEMOTO OIL & FAT CO LTD [JP]);
 [Y]EP0145150  (TAKEMOTO OIL & FAT CO LTD [JP]);
 [A]GB2090302  (TOHO BESLON CO)
 [A]  - JAPANESE PATENTS GAZETTE, week E16, 2nd June 1982, section Ch: Chemical, page 4, abstract no. 31812 E/16, Derwent Publications Ltd, London, GB; JP-A-57 042 974 (KURARAY K.K. (YOSH-) 10-03-1982
 [AP]  - JAPANESE PATENTS ABSTRACTS, Unexamined, week 8910, 19th April 1989, A-M Chemical, page 12, accession no. 89-073495/10, Derwent Publications Ltd, London, GB; & JP-A-1 026 720 (MITSUBISHI CHEM. IND. K.K.) 30-01-1989, & JP1026720 A 00000000
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.