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EP0695736
European procedure
Extract from the Register of European Patents
EP About this file: EP0695736
| EP0695736 - Purification of acrylic acid by azeotropic distillation [Right-click to bookmark this link] | |||
| Former [1996/06] | Purification of acrylic acid by areotropic distillation | ||
| [1998/27] | Status | No opposition filed within time limit Status updated on 10.03.2000 Database last updated on 06.07.2024 | Most recent event Tooltip | 10.03.2000 | No opposition filed within time limit | published on 26.04.2000 [2000/17] | Applicant(s) | For all designated states MITSUBISHI CHEMICAL CORPORATION 5-2, Marunouchi 2-chome Chiyoda-ku Tokyo-to / JP | [N/P] |
| Former [1996/06] | For all designated states MITSUBISHI CHEMICAL CORPORATION 5-2, Marunouchi 2-chome Chiyoda-ku, Tokyo-to / JP | Inventor(s) | 01 /
Sakakura, Yasuyuki c/o Mitsubishi Chem.Corp., Yokkaichi Res.Center 1, Toho-cho, Yokkaichi-shi, Mie-ken / JP | 02 /
Yamagishi, Masahiko c/o Mitsubishi Chem.Corp., Yokkaichi Res.Center 1, Toho-cho, Yokkaichi-shi, Mie-ken / JP | 03 /
Hosaka, Hirochika c/o Mitsubishi Chem.Corp., Yokkaichi Res.Center 1, Toho-cho, Yokkaichi-shi, Mie-ken / JP | [1996/06] | Representative(s) | Hansen, Bernd, et al Hoffmann Eitle Patent- und Rechtsanwälte Arabellastrasse 4 81925 München / DE | [N/P] |
| Former [1996/06] | Hansen, Bernd, Dr. Dipl.-Chem., et al Hoffmann, Eitle & Partner, Patentanwälte, Arabellastrasse 4 D-81925 München / DE | Application number, filing date | 95112302.5 | 04.08.1995 | [1996/06] | Priority number, date | JP19940201522 | 04.08.1994 Original published format: JP 20152294 | [1996/06] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0695736 | Date: | 07.02.1996 | [1996/06] | Type: | B1 Patent specification | No.: | EP0695736 | Date: | 06.05.1999 | Language: | EN | [1999/18] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.11.1995 | Classification | IPC: | C07C57/04, C07C51/46 | [1996/06] | CPC: |
C07C51/46 (EP,US)
| C-Set: |
C07C51/46, C07C57/04 (EP,US)
| Designated contracting states | DE, FR, GB [1996/06] | Title | German: | Reinigung der Acrylsäure durch azeotropische Destillation | [1996/06] | English: | Purification of acrylic acid by azeotropic distillation | [1998/27] | French: | Purification d'acide acrylique par distallation azéotropique | [1998/27] |
| Former [1996/06] | Purification of acrylic acid by areotropic distillation | ||
| Former [1996/06] | Purification d'acide acrylique par distallation aréotropique | Examination procedure | 24.07.1996 | Examination requested [1996/38] | 14.04.1997 | Despatch of a communication from the examining division (Time limit: M04) | 14.08.1997 | Reply to a communication from the examining division | 05.11.1997 | Despatch of a communication from the examining division (Time limit: M02) | 04.12.1997 | Reply to a communication from the examining division | 10.08.1998 | Despatch of communication of intention to grant (Approval: Yes) | 27.10.1998 | Communication of intention to grant the patent | 19.01.1999 | Fee for grant paid | 19.01.1999 | Fee for publishing/printing paid | Opposition(s) | 08.02.2000 | No opposition filed within time limit [2000/17] | Fees paid | Renewal fee | 28.08.1997 | Renewal fee patent year 03 | 27.08.1998 | 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]GB2146636 (NIPPON CATALYTIC CHEM IND) [Y] 1,4,5,10,11,17 * THE WHOLE DOCUMENT. *; | [Y]US3844903 (WILLERSINN C, et al) [Y] 1,4,5,10,11,17 * column 3, line 59 - column 4, line 12 * * column 4, line 48 - line 62 * * column 5, line 5 - column 6, line 2 * * column 6, line 31 - line 33 * * figures 1,2 * * claims 1-6 *; | [Y]US3781193 (SENNEWALD K, et al) [Y] 1,4,5,10,11,17 * column 4, line 5 - column 5, line 33 * * figure 1 * * claims 1-5,7-9 * | by applicant | JPS4618967B | JPS4620372B | JPS4622456B | JPS4634692B | JPS4921124B | JPH05246941 | JPS4115569B | JPS4618966B | JPS5025451B | JPS6310691B | JPH03181440 | JPH0615495 | JPH0615496 |