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EP0432909
European procedure
Extract from the Register of European Patents
EP About this file: EP0432909
| EP0432909 - Chromium oxide catalyst regeneration method [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 03.12.1994 Database last updated on 16.07.2024 | Most recent event Tooltip | 25.07.2008 | Change - representative | published on 27.08.2008 [2008/35] | Applicant(s) | For all designated states MITSUI TOATSU CHEMICALS, Inc. 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 / JP | [N/P] |
| Former [1991/25] | For all designated states MITSUI TOATSU CHEMICALS, Inc. 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 / JP | Inventor(s) | 01 /
Yoshikawa, Yukihiro 2142 Togo Mobara-shi, Chiba-ken / JP | 02 /
Hihara, Tooru 41 Enmeijimachi Ohmuta-shi, Fukuoka-ken / JP | 03 /
Yamada, Kunihiro 1143 Tegama Ohmuta-shi, Fukuoka-ken / JP | 04 /
Takenaka, Shinji 104 Shiraganemachi Ohmuta-shi, Fukuoka-ken / JP | 05 /
Kawahara, Kazunori 3-8-405 Hikoshimasakomachi 3-chome Shimonoseki-shi, Yamaguchi-ken / JP | 06 /
Kitagawa, Jun 1-12 Hikoshimadeshimatsuhigashimachi Shimonoseki-shi, Yamaguchi-ken / JP | [1991/25] | Representative(s) | Stuart, Ian Alexander, et al Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE / GB | [N/P] |
| Former [2008/35] | Stuart, Ian Alexander, et al Mewburn Ellis LLP York House 23 Kingsway London WC2B 6HP / GB | ||
| Former [1991/25] | Stuart, Ian Alexander, et al MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP / GB | Application number, filing date | 90312426.1 | 14.11.1990 | [1991/25] | Priority number, date | JP19890301867 | 22.11.1989 Original published format: JP 30186789 | [1991/25] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0432909 | Date: | 19.06.1991 | Language: | EN | [1991/25] | Type: | A3 Search report | No.: | EP0432909 | Date: | 03.07.1991 | Language: | EN | [1991/27] | Type: | B1 Patent specification | No.: | EP0432909 | Date: | 02.02.1994 | Language: | EN | [1994/05] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 13.05.1991 | Classification | IPC: | B01J23/92, B01J38/68, C01B7/04 | [1991/25] | CPC: |
C01B7/04 (EP,US);
B01J38/60 (KR);
B01J23/92 (EP,US);
B01J38/485 (EP,US);
B01J38/68 (EP,US);
Y02P20/584 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1991/25] | Title | German: | Verfahren zur Regenerierung eines Chromoxid-Katalysators | [1991/25] | English: | Chromium oxide catalyst regeneration method | [1991/25] | French: | Méthode de régénération d'un catalyseur à l'oxyde de chrome | [1991/25] | Examination procedure | 24.12.1990 | Examination requested [1991/25] | 31.01.1992 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time | 23.07.1992 | Despatch of a communication from the examining division (Time limit: M04) | 23.11.1992 | Reply to a communication from the examining division | 09.02.1993 | Despatch of communication of intention to grant (Approval: Yes) | 11.05.1993 | Communication of intention to grant the patent | 06.08.1993 | Fee for grant paid | 06.08.1993 | Fee for publishing/printing paid | Opposition(s) | 03.11.1994 | No opposition filed within time limit [1995/04] | Request for further processing for: | 07.02.1992 | Request for further processing filed | 07.02.1992 | Full payment received (date of receipt of payment) Request granted | 12.03.1992 | Decision despatched | Fees paid | Renewal fee | 29.10.1992 | Renewal fee patent year 03 | 23.11.1993 | Renewal fee patent year 04 |
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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. | Documents cited: | Search | [Y]GB1312986 (DOW CHEMICAL CO); | [Y]EP0272332 (MITSUI TOATSU CHEMICALS [JP]); | [A]GB846832 (INST FRANCAIS DU PETROLE) |