EP0338429 - Process for the preparation of d-alpha-tocopherol from natural starting products [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 20.11.1993 Database last updated on 15.06.2024 | Most recent event Tooltip | 20.11.1993 | No opposition filed within time limit | published on 12.01.1994 [1994/02] | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
Former [1989/43] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Lechtken, Peter, Dr. Ludwigshafener Strasse 6B D-6710 Frankenthal / DE | 02 /
Hoercher, Ulrich, Dr. Kolpingstrasse 15 D-6800 Mannheim 1 / DE | 03 /
Jessel, Barbara, Dr. Hochfeldstrasse 26 D-6700 Ludwigshafen / DE | [1989/43] | Application number, filing date | 89106601.1 | 13.04.1989 | [1989/43] | Priority number, date | DE19883813624 | 22.04.1988 Original published format: DE 3813624 | [1989/43] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0338429 | Date: | 25.10.1989 | Language: | DE | [1989/43] | Type: | A3 Search report | No.: | EP0338429 | Date: | 20.12.1989 | Language: | DE | [1989/51] | Type: | B1 Patent specification | No.: | EP0338429 | Date: | 20.01.1993 | Language: | DE | [1993/03] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 30.10.1989 | Classification | IPC: | C07D311/72 | [1989/43] | CPC: |
C07D311/72 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL [1989/43] | Title | German: | Verfahren zur Herstellung von d-alpha-Tocopherol aus natürlichen Vorprodukten | [1989/43] | English: | Process for the preparation of d-alpha-tocopherol from natural starting products | [1989/43] | French: | Procédé de préparation de d-alpha-tocophérol à partir de produits de départ naturels | [1989/43] | Examination procedure | 25.01.1990 | Examination requested [1990/12] | 23.03.1992 | Despatch of communication of intention to grant (Approval: Yes) | 23.07.1992 | Communication of intention to grant the patent | 29.08.1992 | Fee for grant paid | 29.08.1992 | Fee for publishing/printing paid | Opposition(s) | 21.10.1993 | No opposition filed within time limit [1994/02] | Fees paid | Renewal fee | 02.01.1991 | Renewal fee patent year 03 | 16.04.1992 | Renewal fee patent year 04 |
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