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Extract from the Register of European Patents

EP About this file: EP0292797

EP0292797 - Process for preparing particles of olefin-maleic anhydride copolymer [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  11.06.1994
Database last updated on 24.08.2024
Most recent event   Tooltip11.06.1994No opposition filed within time limitpublished on 03.08.1994 [1994/31]
Applicant(s)For all designated states
KAO CORPORATION
14-10, Nihonbashi Kayabacho 1-chome
Chuo-Ku, Tokyo 103 / JP
[N/P]
Former [1988/48]For all designated states
Kao Corporation
14-10, Nihonbashi Kayabacho 1-chome
Chuo-Ku Tokyo 103 / JP
Inventor(s)01 / Ohtani, Shoji
A-201, 1011-3, Maekaizukacho
Funabashi-shi Chiba / JP
02 / Muroi, Yoshiyuki
4-1, Kinryujicho
Wakayama-shi Wakayama / JP
03 / Tsushima, Rikio
4-21-302, Akibacho
Wakayama-shi Wakayama / JP
[1989/06]
Former [1988/48]01 / Ohtani, Shoji
A-201, 1011-3, Maekaizukacho
Funabasi-shi Chiba / JP
02 / Muroi, Yoshiyuki
4-1, Kinryujicho
Wakayama-shi Wakayama / JP
03 / Tsushima, Rikio
4-21-302, Akibacho
Wakayama-shi Wakayama / JP
Representative(s)Dr. Solf & Zapf Patent- und Rechtsanwalts PartG mbB
Candidplatz 15
81543 München / DE
[N/P]
Former [1988/48]Patentanwälte Dr. Solf & Zapf
Candidplatz 15
D-81543 München / DE
Application number, filing date88107643.411.05.1988
[1988/48]
Priority number, dateJP1987012764125.05.1987         Original published format: JP 12764187
[1988/48]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0292797
Date:30.11.1988
Language:EN
[1988/48]
Type: A3 Search report 
No.:EP0292797
Date:02.05.1991
Language:EN
[1991/18]
Type: B1 Patent specification 
No.:EP0292797
Date:11.08.1993
Language:EN
[1993/32]
Search report(s)(Supplementary) European search report - dispatched on:EP13.03.1991
ClassificationIPC:C08F210/00, C08F2/08, C08F222/06, // (C08F210/00, 222:06)
[1991/22]
CPC:
C08F210/00 (EP,US); C08F210/10 (EP,US)
C-Set:
C08F210/00, C08F2/08 (EP,US);
C08F210/10, C08F222/06 (US,EP)
Former IPC [1988/48]C08F210/00, C08F2/08, // (C08F210/00, 222:06)
Designated contracting statesDE,   ES [1988/48]
TitleGerman:Verfahren und Herstellung von Olefin-Maleinsäureanhydrid-Copolymerteilchen[1988/48]
English:Process for preparing particles of olefin-maleic anhydride copolymer[1988/48]
French:Procédé de préparation de particules de copolymères d'oléfines et d'anhydride maléique[1988/48]
Examination procedure18.12.1990Examination requested  [1991/07]
08.01.1993Despatch of communication of intention to grant (Approval: Yes)
08.02.1993Communication of intention to grant the patent
08.04.1993Fee for grant paid
08.04.1993Fee for publishing/printing paid
Opposition(s)12.05.1994No opposition filed within time limit [1994/31]
Fees paidRenewal fee
17.05.1990Renewal fee patent year 03
16.05.1991Renewal fee patent year 04
18.05.1992Renewal fee patent year 05
18.05.1993Renewal fee patent year 06
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Documents cited:Search[A]US3793245  (CLARKE M, et al);
 [AD]DE2501123  (BAYER AG);
 [A]EP0009169  (BASF AG [DE]);
 [A]EP0055502  (HUELS CHEMISCHE WERKE AG [DE]);
 [XP]EP0260386  (HUELS CHEMISCHE WERKE AG [DE])
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.