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EP0137371
European procedure
Extract from the Register of European Patents
EP About this file: EP0137371
| EP0137371 - Process for the racemisation of optically active aminoacids [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 03.04.1990 Database last updated on 10.05.2025 | Most recent event Tooltip | 03.04.1990 | No opposition filed within time limit | published on 23.05.1990 [1990/21] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1985/16] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
Grabley, Susanne, Dr. Hölderlinstrasse 7 D-6240 Königstein/Taunus / DE | [1985/16] | Application number, filing date | 84111206.3 | 20.09.1984 | [1985/16] | Priority number, date | DE19833334849 | 27.09.1983 Original published format: DE 3334849 | [1985/16] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0137371 | Date: | 17.04.1985 | Language: | DE | [1985/16] | Type: | A3 Search report | No.: | EP0137371 | Date: | 27.12.1985 | Language: | DE | [1985/52] | Type: | B1 Patent specification | No.: | EP0137371 | Date: | 31.05.1989 | Language: | DE | [1989/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.10.1985 | Classification | IPC: | C07B55/00 | [1985/16] | CPC: |
C07F9/301 (EP,US)
| Designated contracting states | AT, CH, DE, FR, GB, IT, LI, NL, SE [1985/16] | Title | German: | Verfahren zur Racemisierung optisch aktiver Aminosäuren | [1985/16] | English: | Process for the racemisation of optically active aminoacids | [1985/29] | French: | Procédé de racémisation d'acides aminés optiquement actifs | [1985/29] | Examination procedure | 10.03.1986 | Examination requested [1986/19] | 10.08.1987 | Despatch of a communication from the examining division (Time limit: M04) | 10.12.1987 | Reply to a communication from the examining division | 05.02.1988 | Despatch of a communication from the examining division (Time limit: M02) | 31.03.1988 | Reply to a communication from the examining division | 21.07.1988 | Despatch of communication of intention to grant (Approval: Yes) | 29.11.1988 | Communication of intention to grant the patent | 07.02.1989 | Fee for grant paid | 07.02.1989 | Fee for publishing/printing paid | Opposition(s) | 01.03.1990 | No opposition filed within time limit [1990/21] | Fees paid | Renewal fee | 13.08.1986 | Renewal fee patent year 03 | 17.08.1987 | Renewal fee patent year 04 | 11.08.1988 | Renewal fee patent year 05 |
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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 | [A]DE1543919 (TOA GOSEI CHEM IND); | [A]DE1964420 (HOFFMANN LA ROCHE); | [AD]DE2352579 (AJINOMOTO KK) |