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EP0381988
European procedure
Extract from the Register of European Patents
EP About this file: EP0381988
| EP0381988 - Process for removing metallic corrosion products from a contaminated catalyst solution used in the carbonylation of methanol and/or dimethyl acetate and/or dimethyl ether [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 11.02.1993 Database last updated on 26.06.2024 | Most recent event Tooltip | 11.02.1993 | No opposition filed within time limit | published on 31.03.1993 [1993/13] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT Hanauer Landstrasse 526 60386 Frankfurt am Main / DE | [N/P] |
| Former [1990/33] | For all designated states HOECHST AKTIENGESELLSCHAFT Hanauer Landstrasse 526 D-60386 Frankfurt am Main / DE | Inventor(s) | 01 /
Erpenbach, Heinz, Dr. Oberbuschweg 22 D-5000 Köln / DE | 02 /
Lork, Winfried Siegfried-von-Westerburg-Strasse 14 D-5042 Erftstadt / DE | 03 /
Seidel, Andreas, Dr. Luxemburger Strasse 469 D-5000 Köln / DE | 04 /
Prinz, Peter Von-Geyr-Ring 104 D-5030 Hürth / DE | [1990/33] | Application number, filing date | 90101306.0 | 23.01.1990 | [1990/33] | Priority number, date | DE19893903909 | 10.02.1989 Original published format: DE 3903909 | [1990/33] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0381988 | Date: | 16.08.1990 | Language: | DE | [1990/33] | Type: | B1 Patent specification | No.: | EP0381988 | Date: | 08.04.1992 | Language: | DE | [1992/15] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 05.06.1990 | Classification | IPC: | B01J31/40, C07C51/42, C07C53/08, C07C51/573, C07C53/12 | [1990/33] | CPC: |
B01J31/0268 (EP,US);
B01J31/20 (EP,US);
B01J31/4038 (EP,US);
B01J31/4046 (EP,US);
C07C51/373 (EP,US);
C07C51/42 (EP,US);
B01J2231/34 (EP,US);
B01J2531/82 (EP,US);
B01J2531/822 (EP,US);
Y02P20/584 (EP,US)
(-)
| C-Set: |
C07C51/373, C07C53/12 (EP,US);
C07C51/42, C07C53/08 (US,EP) | Designated contracting states | AT, BE, CH, DE, ES, FR, GB, IT, LI, NL [1990/33] | Title | German: | Verfahren zur Entfernung metallischer Korrosionsprodukte aus einer bei der Carbonylierung von Methanol und/oder Methylacetat und/oder Dimethylether anfallenden, verunreinigten Katalysatorlösung | [1990/33] | English: | Process for removing metallic corrosion products from a contaminated catalyst solution used in the carbonylation of methanol and/or dimethyl acetate and/or dimethyl ether | [1990/33] | French: | Procédé d'élimination des produits métalliques de corrosion contenus dans une solution catalytique usagée, utilisée pour la carbonylation du méthanol et/ou de l'acétate de méthyle et/ou de l'éther de diméthyle | [1990/33] | Examination procedure | 14.09.1990 | Examination requested [1990/45] | 22.04.1991 | Despatch of a communication from the examining division (Time limit: M02) | 11.05.1991 | Reply to a communication from the examining division | 30.08.1991 | Despatch of communication of intention to grant (Approval: No) | 09.09.1991 | Despatch of communication of intention to grant (Approval: later approval) | 16.09.1991 | Communication of intention to grant the patent | 04.11.1991 | Fee for grant paid | 04.11.1991 | Fee for publishing/printing paid | Opposition(s) | 09.01.1993 | No opposition filed within time limit [1993/13] | Fees paid | Renewal fee | 09.12.1991 | Renewal fee patent year 03 |
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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]EP0032525 (HUELS CHEMISCHE WERKE AG [DE]); | [X]EP0073342 (HOECHST AG [DE]); | [A]EP0156253 (RUHRCHEMIE AG [DE]); | [A]EP0240703 (HOECHST AG [DE]) |