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EP0633250
European procedure
Extract from the Register of European Patents
EP About this file: EP0633250
| EP0633250 - Process for the preparation of 2,4-pyridinedicarobxylic acid [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.12.1997 Database last updated on 15.06.2024 | Most recent event Tooltip | 19.12.1997 | No opposition filed within time limit | published on 04.02.1998 [1998/06] | Applicant(s) | For all designated states RÜTGERS Organics GmbH Sandhofer Strasse 96 68305 Mannheim / DE | [N/P] |
| Former [1997/04] | For all designated states Weyl GmbH Sandhofer Strasse 96 68305 Mannheim / DE | ||
| Former [1996/25] | For all designated states Rütgers Aktiengesellschaft Mainzer Landstrasse 217 60326 Frankfurt / DE | ||
| Former [1995/02] | For all designated states RÜTGERSWERKE AKTIENGESELLSCHAFT Mainzer Landstrasse 217 D-60326 Frankfurt / DE | Inventor(s) | 01 /
Sendelbach, Stefan, Dr. Spessartstrasse 18 D-74172 Neckarsulm / DE | 02 /
Orth, Winfried, Dr. Am Schachtelgraben 28 D-67454 Hassloch / DE | 03 /
Weiss, Wolfgang, Dr. Kelterweg 3 D-68535 Edingen-Neckarhausen / DE | 04 /
Kleffner, Hans Werner, Dr. Panoramastrasse 13 D-67271 Battenberg / DE | [1995/02] | Representative(s) | Zellentin & Partner mbB Patentanwälte Rubensstraße 30 67061 Ludwigshafen / DE | [N/P] |
| Former [1996/25] | Patentanwälte Zellentin & Partner Rubensstrasse 30 67061 Ludwigshafen / DE | Application number, filing date | 94106176.4 | 21.04.1994 | [1995/02] | Priority number, date | DE19934323071 | 10.07.1993 Original published format: DE 4323071 | [1995/02] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0633250 | Date: | 11.01.1995 | Language: | DE | [1995/02] | Type: | B1 Patent specification | No.: | EP0633250 | Date: | 12.02.1997 | Language: | DE | [1997/07] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.10.1994 | Classification | IPC: | C07D213/79, C07D213/84 | [1995/02] | CPC: |
C07D213/79 (EP);
C07D213/84 (EP);
C07D213/89 (EP)
| Designated contracting states | BE, DE, FR, GB, IT, NL [1995/02] | Title | German: | Verfahren zur Herstellung von 2,4-Pyridindicarbonsäure | [1995/02] | English: | Process for the preparation of 2,4-pyridinedicarobxylic acid | [1995/02] | French: | Procédé pour la préparation d'acide pyridinedicarboxylique-2,4 | [1995/02] | Examination procedure | 28.10.1994 | Examination requested [1995/02] | 03.07.1995 | Despatch of a communication from the examining division (Time limit: M04) | 25.10.1995 | Reply to a communication from the examining division | 09.02.1996 | Despatch of communication of intention to grant (Approval: Yes) | 29.04.1996 | Communication of intention to grant the patent | 19.06.1996 | Fee for grant paid | 19.06.1996 | Fee for publishing/printing paid | Opposition(s) | 13.11.1997 | No opposition filed within time limit [1998/06] | Fees paid | Renewal fee | 12.04.1996 | 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 | [X] - H. TANI, "Reaction of N-alkoxypyridinium derivatives.", CHEMICAL ABSTRACTS, (1961), vol. 55, no. 7, Database accession no. 6478b [X] 1-8 * page 6478, column R, lines 13-16 * | [ ] - YAKUGAKU ZASSHI, (1960), vol. 80, pages 1418 - 1424 | [A] - C.W. SOMAWARDHANA ET AL., "Novel solid-state support for radio synthesis of radiopharmaceuticals labelled with [11C]-cyanide.", JOURNAL OF THE CHEMICAL SOCIETY, CHEMICAL COMMUNICATIONS., LETCHWORTH GB, (1990), no. 5, pages 370 - 371 [A] 1-8 | [A] - E. MATSUMURA ET AL., "Studies of the Reissert-Kaufmann type reaction of 4-nitropyridine N-oxyde and its homologues.", BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, TOKYO JP, (1970), vol. 43, no. 10, pages 3210 - 3214 | [A] - R.A. ABRAMOVITCH, Chemistry of heterocyclic compounds. Vol. 14: Pyridine and its derivatives. Supplement part 3., NEW YORK, WILEY, (1974) [A] * page 300 * | [A] - H. TANI, "The reaction of N-alkoxypyridinium derivatives.", CHEMICAL AND PHARMACEUTICAL BULLETIN, TOKYO JP, (1959), vol. 7, pages 930 - 934 |