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EP0068866
European procedure
Extract from the Register of European Patents
EP About this file: EP0068866
| EP0068866 - Method of manufacturing acetone or methyl ethyl ketone [Right-click to bookmark this link] | |||
| Former [1983/01] | Method of manufacturing ketones | ||
| [1985/30] | Status | No opposition filed within time limit Status updated on 26.05.1986 Database last updated on 11.04.2026 | Most recent event Tooltip | 26.05.1986 | No opposition filed within time limit | published on 16.07.1986 [1986/29] | Applicant(s) | For all designated states TOA NENRYO KOGYO KABUSHIKI KAISHA 1-1 Hitotsubashi, 1-Chome Chiyoda-Ku Tokyo 100 / JP | [1983/01] | Inventor(s) | 01 /
Okumura, Yoshiharu 6-29-112, Shimoochiai 3-chome Shinjuku-ku Tokyo / JP | 02 /
Sakakibara, Tadamori 1902-5, Ooaza Kamekubo Ooi-machi Iruma-gun Saitama-ken / JP | 03 /
Kaneko, Katsumi 2174-19, Ooaza Nishitsurugaoka Ooi-machi Iruma-gun Saitama-ken / JP | [1983/03] |
| Former [1983/01] | 01 /
Okumura, Yoshiharu 6-29-112, Shinjuku-ku Tokyo / JP | ||
| 02 /
Sakakibara, Tadamori 1902-5, Ooaza Kamekubo Ooi-machi Iruma-gun Saitama-ken / JP | |||
| 03 /
Kaneko, Katsumi 2174-19, Ooaza Nishitsurugaoka Ooi-machi Iruma-gun Saitama-ken / JP | Representative(s) | Northover, Robert Frank, et al ESSO Chemical Limited ESSO Chemical Research Centre P.O. Box 1 Abingdon Oxfordshire OX13 6BB / GB | [N/P] |
| Former [1983/01] | Northover, Robert Frank, et al ESSO Chemical Limited Esso Chemical Research Centre P.O. Box 1 Abingdon Oxfordshire, OX13 6BB / GB | Application number, filing date | 82303361.8 | 28.06.1982 | [1983/01] | Priority number, date | JP19810101333 | 01.07.1981 Original published format: JP 10133381 | [1983/01] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0068866 | Date: | 05.01.1983 | Language: | EN | [1983/01] | Type: | B1 Patent specification | No.: | EP0068866 | Date: | 24.07.1985 | Language: | EN | [1985/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 26.10.1982 | Classification | IPC: | C07C45/34, C07C49/04, B01J31/30 | [1983/01] | CPC: |
C07C45/30 (EP);
C07C45/34 (EP);
C07C45/35 (EP)
| Designated contracting states | BE, DE, FR, GB [1983/01] | Title | German: | Verfahren zur Herstellung von Aceton oder Methylethylketon | [1985/30] | English: | Method of manufacturing acetone or methyl ethyl ketone | [1985/30] | French: | Procédé de fabrication de l'acétone ou de la méthyl éthyl kétone | [1985/30] |
| Former [1983/01] | Verfahren zur Herstellung von Ketonen | ||
| Former [1983/01] | Method of manufacturing ketones | ||
| Former [1983/01] | Procédé de fabrication de cétones | File destroyed: | 03.03.2001 | Examination procedure | 08.07.1982 | Examination requested [1983/01] | 15.09.1983 | Despatch of a communication from the examining division (Time limit: M04) | 04.01.1984 | Reply to a communication from the examining division | 23.10.1984 | Despatch of communication of intention to grant (Approval: ) | 16.01.1985 | Communication of intention to grant the patent | 21.03.1985 | Fee for publishing/printing paid | 29.03.1985 | Fee for grant paid | Opposition(s) | 25.04.1986 | No opposition filed within time limit [1986/29] | Fees paid | Renewal fee | 19.03.1984 | Renewal fee patent year 03 | 28.03.1985 | Renewal fee patent year 04 |
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