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EP0023645
European procedure
Extract from the Register of European Patents
EP About this file: EP0023645
| EP0023645 - Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones [Right-click to bookmark this link] | |||
| Former [1981/06] | Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones, as well as particular 1,4-diamino-2,3-dicyanoanthraquinones per se | ||
| [1982/30] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 12.07.2024 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1981/06] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Kröck, Friedrich Wilhelm, Dr. Gerstenkamp 12 D-5000 Köln 80 / DE | 02 /
Neeff, Rütger, Dr. Berta-von-Suttner-Strasse 33 D-5090 Leverkusen 1 / DE | 03 /
Scheiter, Heinz, Dr. Feuerbachstrasse 11 D-5090 Leverkusen 1 / DE | [1981/06] | Application number, filing date | 80104227.6 | 18.07.1980 | [1981/06] | Priority number, date | DE19792931981 | 07.08.1979 Original published format: DE 2931981 | DE19803003657 | 01.02.1980 Original published format: DE 3003657 | [1981/06] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0023645 | Date: | 11.02.1981 | Language: | DE | [1981/06] | Type: | B1 Patent specification | No.: | EP0023645 | Date: | 28.07.1982 | Language: | DE | [1982/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.11.1980 | Classification | IPC: | C09B1/22, C09B1/28, C07C121/78, C07C120/00 | [1981/06] | CPC: |
C09B1/28 (EP,US);
C09B1/22 (EP,US)
| Designated contracting states | CH, DE, FR, GB, LI [1981/06] | Title | German: | Verfahren zur Herstellung von 1,4-Diamino-2,3-dicyanoanthrachinonen | [1982/30] | English: | Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones | [1982/30] | French: | Procédé de préparation de 1,4-diamino-2,3-dicyanoanthraquinones | [1982/30] |
| Former [1981/06] | Verfahren zur Herstellung von 1,4-Diamino-2,3-dicyanoanthrachinonen sowie bestimmte 1,4-Diamino-2,3-dicyanoanthrachinone an sich | ||
| Former [1981/06] | Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones, as well as particular 1,4-diamino-2,3-dicyanoanthraquinones per se | ||
| Former [1981/06] | Procédé de préparation de 1,4-diamino-2,3-dicyanoanthraquinones ainsi que de certains 1,4-diamino-2,3-dicyanoanthraquinones en soi | File destroyed: | 12.06.1999 | Examination procedure | 18.07.1980 | Examination requested [1981/06] | 29.05.1981 | Despatch of a communication from the examining division (Time limit: M04) | 16.06.1981 | Reply to a communication from the examining division | 24.07.1981 | Despatch of a communication from the examining division (Time limit: M01) | 30.07.1981 | Reply to a communication from the examining division | 08.10.1981 | Despatch of communication of intention to grant (Approval: ) | 28.01.1982 | Communication of intention to grant the patent | 03.02.1982 | Fee for grant paid | 03.02.1982 | Fee for publishing/printing paid | Opposition(s) | 28.04.1983 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 15.07.1982 | 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 | DE2524748 [ ] (BASF AG); | GB901059 [ ] (BASF AG); | DE1906834 [ ] (CIBA GEIGY); | GB1212846 [ ] (CIBA LTD [CH]) |