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EP0269045
European procedure
Extract from the Register of European Patents
EP About this file: EP0269045
| EP0269045 - Process for preparing etherifed 3-hydroxy valeric acid esters [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 05.11.1992 Database last updated on 09.05.2025 | Most recent event Tooltip | 05.11.1992 | No opposition filed within time limit | published on 23.12.1992 [1992/52] | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
| Former [1988/22] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Fischer, Rolf, Dr. Bergstrasse 98 D-6900 Heidelberg / DE | [1988/22] | Application number, filing date | 87117212.8 | 23.11.1987 | [1988/22] | Priority number, date | DE19863640595 | 27.11.1986 Original published format: DE 3640595 | [1988/22] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0269045 | Date: | 01.06.1988 | Language: | DE | [1988/22] | Type: | A3 Search report | No.: | EP0269045 | Date: | 15.03.1989 | Language: | DE | [1989/11] | Type: | B1 Patent specification | No.: | EP0269045 | Date: | 02.01.1992 | Language: | DE | [1992/01] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.01.1989 | Classification | IPC: | C07C67/31, C07C69/708, C07C69/712 | [1988/22] | CPC: |
C07C69/708 (EP,US)
| Designated contracting states | BE, CH, DE, ES, FR, GB, IT, LI, NL [1988/22] | Title | German: | Verfahren zur Herstellung von veretherten 3-Hydroxyvaleriansäureestern | [1988/22] | English: | Process for preparing etherifed 3-hydroxy valeric acid esters | [1988/22] | French: | Procédé pour la préparation d'esters d'acide 3-hydroxyvalérique éthérifié | [1988/22] | Examination procedure | 09.02.1989 | Examination requested [1989/16] | 20.12.1990 | Despatch of a communication from the examining division (Time limit: M04) | 20.02.1991 | Reply to a communication from the examining division | 26.04.1991 | Despatch of communication of intention to grant (Approval: No) | 06.06.1991 | Despatch of communication of intention to grant (Approval: later approval) | 19.06.1991 | Communication of intention to grant the patent | 30.07.1991 | Fee for grant paid | 30.07.1991 | Fee for publishing/printing paid | Opposition(s) | 03.10.1992 | No opposition filed within time limit [1992/52] | Fees paid | Renewal fee | 17.11.1989 | Renewal fee patent year 03 | 17.11.1990 | Renewal fee patent year 04 | 02.01.1991 | 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 | [AD] - ARKIV FÖR KEMI Band 12, Nr. 25, 1958, Seiten 239-246, SALO GRONOWITZ: " 3-Substituted thiophenes Preparation and metalation of 3-methoxythiophene" | Examination | - J.ORG.CHEMISTRY 47,(1982), S. 2745-2748 |