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EP0235940
European procedure
Extract from the Register of European Patents
EP About this file: EP0235940
| EP0235940 - Method for racemization of chrysanthemic acid or its ester [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 30.05.1991 Database last updated on 11.04.2026 | Most recent event Tooltip | 30.05.1991 | No opposition filed within time limit | published on 17.07.1991 [1991/29] | Applicant(s) | For all designated states Sumitomo Chemical Company, Limited 5-33, Kitahama 4-chome Chuo-ku Osaka 541-8550 / JP | [N/P] |
| Former [1987/37] | For all designated states SUMITOMO CHEMICAL COMPANY, LIMITED Kitahama 4-chome 5-33 Chuo-ku Osaka 541 / JP | Inventor(s) | 01 /
Suzukamo, Gohfu 2-1-216, Kuwatacho Ibaraki-shi Osaka 567 / JP | 02 /
Fukao, Masami 398-3, Rittocho-Kitanakakouji Kurita-gun Shiga 520-30 / JP | [1987/37] | Representative(s) | Myerscough, Philip Boyd J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX / GB | [1987/37] | Application number, filing date | 87300842.9 | 30.01.1987 | [1987/37] | Priority number, date | JP19860043442 | 27.02.1986 Original published format: JP 4344286 | [1987/37] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0235940 | Date: | 09.09.1987 | Language: | EN | [1987/37] | Type: | B1 Patent specification | No.: | EP0235940 | Date: | 25.07.1990 | Language: | EN | [1990/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.07.1987 | Classification | IPC: | C07C61/37, C07C69/747, C07C51/353, C07C67/333 | [1987/37] | CPC: |
C07C51/487 (EP,US)
| C-Set: |
C07C51/487, C07C61/37 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL [1987/37] | Title | German: | Verfahren zur Razemisierung von Chrysanthemsäure oder ihrem Ester | [1987/37] | English: | Method for racemization of chrysanthemic acid or its ester | [1987/37] | French: | Procédé de de racémisation de l'acide chrysanthémique ou de son ester | [1987/37] | Examination procedure | 14.01.1988 | Examination requested [1988/11] | 26.10.1988 | Despatch of a communication from the examining division (Time limit: M08) | 23.05.1989 | Reply to a communication from the examining division | 06.10.1989 | Despatch of communication of intention to grant (Approval: Yes) | 18.01.1990 | Communication of intention to grant the patent | 12.04.1990 | Fee for grant paid | 12.04.1990 | Fee for publishing/printing paid | Opposition(s) | 26.04.1991 | No opposition filed within time limit [1991/29] | Fees paid | Renewal fee | 13.01.1989 | Renewal fee patent year 03 | 17.01.1990 | Renewal fee patent year 04 |
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