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EP0068218
European procedure
Extract from the Register of European Patents
EP About this file: EP0068218
| EP0068218 - Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 05.08.1985 Database last updated on 03.08.2024 | Most recent event Tooltip | 05.08.1985 | No opposition filed within time limit | published on 09.10.1985 [1985/41] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | For all designated states EC ERDÖLCHEMIE GMBH Alte Strasse 201 D-50769 Köln / DE | [N/P] |
| Former [1983/01] | For all designated states BAYER AG D-51368 Leverkusen / DE | ||
| For all designated states EC ERDÖLCHEMIE GMBH Alte Strasse 201 D-50769 Köln / DE | Inventor(s) | 01 /
Herwig, Jens, Dr. Auf dem Hügel 23 D-5000 Koeln 41 / DE | 02 /
Scheef, Hans-Volker Goethestrasse 69 D-4047 Dormagen 1 / DE | 03 /
Schleppinghoff, Bernhard, Dr. Adolf-Kolping-Strasse 5 D-4047 Dormagen 1 / DE | 04 /
Lange, Peter Michael, Dr. Walter-Flex-Strasse 9 D-5090 Leverkusen 1 / DE | [1983/01] | Application number, filing date | 82105099.4 | 11.06.1982 | [1983/01] | Priority number, date | DE19813124293 | 19.06.1981 Original published format: DE 3124293 | [1983/01] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0068218 | Date: | 05.01.1983 | Language: | DE | [1983/01] | Type: | B1 Patent specification | No.: | EP0068218 | Date: | 10.10.1984 | Language: | DE | [1984/41] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 25.10.1982 | Classification | IPC: | C07C43/04, C07C41/06, C07C7/148, // C07C41/36, C07C29/76 | [1983/01] | CPC: |
C07C41/36 (EP,US);
C07C41/06 (EP,US);
C07C7/14891 (EP,US)
| C-Set: |
C07C41/06, C07C43/046 (EP,US);
C07C41/36, C07C43/046 (US,EP) | Designated contracting states | AT, BE, DE, FR, GB, IT, NL [1983/01] | Title | German: | Verfahren zur Herstellung von reinen Alkyl-tert.-alkyl-ethern und weitgehend vom Isoolefin und vom Alkanol befreiten Kohlenwasserstoff-Raffinaten | [1983/01] | English: | Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols | [1983/01] | French: | Procédé pour la préparation d'éthers alkyl-tert.-alkyl purs et raffinats hydrocarbonées libérés pour la majeure partie d'isooléfines et d'alkanols | [1983/01] | Examination procedure | 11.06.1982 | Examination requested [1983/01] | 14.09.1983 | Despatch of a communication from the examining division (Time limit: M04) | 07.11.1983 | Reply to a communication from the examining division | 03.01.1984 | Despatch of communication of intention to grant (Approval: ) | 27.03.1984 | Communication of intention to grant the patent | 07.04.1984 | Fee for grant paid | 07.04.1984 | Fee for publishing/printing paid | Opposition(s) | 11.07.1985 | No opposition filed within time limit [1985/41] | Fees paid | Renewal fee | 23.05.1984 | 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 | [AD]DE2629769 (HUELS CHEMISCHE WERKE AG); | [AD]DE2802198 (BASF AG); | [AD]FR2448521 (INST FRANCAIS DU PETROLE); | [A]DE2938222 (GULF CANADA LTD [CA]) |