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EP0520414
European procedure
Extract from the Register of European Patents
EP About this file: EP0520414
| EP0520414 - Process for the preparation of diacetylrhein [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 17.01.1997 Database last updated on 16.11.2024 | Most recent event Tooltip | 13.10.2006 | Lapse of the patent in a contracting state | published on 15.11.2006 [2006/46] | Applicant(s) | For all designated states MADAUS Aktiengesellschaft Ostmerheimer Strasse 198 Postfach 91 05 55 D-51075 Köln / DE | [N/P] |
| Former [1993/01] | For all designated states MADAUS Aktiengesellschaft Ostmerheimer Strasse 198 Postfach 91 05 55 D-51075 Köln / DE | Inventor(s) | 01 /
Carcasona, Alfons, Dr. Frankfurter Strasse 192 W-5000 Köln 80 / DE | 02 /
Grimminger, Wolf, Dr. Friedrich-Rosengarth-Strasse 31 W-5060 Bergisch-Gladbach 1 / DE | 03 /
Hietala, Pentti, Dr. Alkutie 5 SF-00660 Helsnki 66 / FI | 04 /
Witthohn, Klaus, Dr. Höhenstrasse 26 W-5063 Overath / DE | 05 /
Zaeske, Helga Platanenweg 20 W-5063 Overath 3 / DE | [1993/01] | Application number, filing date | 92110652.2 | 24.06.1992 | [1993/01] | Priority number, date | DE19914120989 | 25.06.1991 Original published format: DE 4120989 | [1993/01] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0520414 | Date: | 30.12.1992 | Language: | DE | [1992/53] | Type: | B1 Patent specification | No.: | EP0520414 | Date: | 13.03.1996 | Language: | DE | [1996/11] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.09.1992 | Classification | IPC: | C07C69/95, A61K31/235 | [1993/01] | CPC: |
C07C67/08 (EP,US);
A61P19/02 (EP);
A61P25/04 (EP);
A61P29/00 (EP);
C07C67/56 (EP,US);
C07C2603/24 (EP,US)
| C-Set: |
C07C67/08, C07C69/16 (EP,US);
C07C67/56, C07C69/16 (US,EP) | Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, MC, NL, PT, SE [1993/01] | Title | German: | Verfahren zur Gewinnung von Diacetylrhein | [1993/01] | English: | Process for the preparation of diacetylrhein | [1993/01] | French: | Procédé d'obtention de diacétylrhéine | [1993/01] | Examination procedure | 07.05.1993 | Examination requested [1993/27] | 16.08.1994 | Despatch of a communication from the examining division (Time limit: M04) | 16.12.1994 | Reply to a communication from the examining division | 24.01.1995 | Despatch of a communication from the examining division (Time limit: M02) | 21.03.1995 | Reply to a communication from the examining division | 30.06.1995 | Despatch of communication of intention to grant (Approval: Yes) | 08.09.1995 | Communication of intention to grant the patent | 28.11.1995 | Fee for grant paid | 28.11.1995 | Fee for publishing/printing paid | Opposition(s) | 14.12.1996 | No opposition filed within time limit [1997/10] | Fees paid | Renewal fee | 30.04.1994 | Renewal fee patent year 03 | 26.05.1995 | Renewal fee patent year 04 |
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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. | Lapses during opposition Tooltip | MC | 30.06.1996 | [2006/46] | Documents cited: | Search | [A]FR2508798 (PROTER SPA [IT]); | [AD]GB2112640 (MADAUS & CO DR) | [A] - TETRAHEDRON, Bd. 23, Nr. 1, Januar 1967, OXFORD GB Seiten 515 - 518; V.K.MURTY ET AL: 'Chemical examination of Cassia fistula' |