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EP0476474
European procedure
Extract from the Register of European Patents
EP About this file: EP0476474
| EP0476474 - 4-Amino-3-hydroxy-phthalide and a method for its preparation [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.11.1995 Database last updated on 14.06.2024 | Most recent event Tooltip | 01.11.1995 | No opposition filed within time limit | published on 20.12.1995 [1995/51] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1992/13] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Stoltefuss, Jürgen, Dipl.-Ing. Parkstrasse 20 W-5657 Haan / DE | [1992/13] | Application number, filing date | 91115184.3 | 09.09.1991 | [1992/13] | Priority number, date | DE19904029807 | 20.09.1990 Original published format: DE 4029807 | [1992/13] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0476474 | Date: | 25.03.1992 | Language: | DE | [1992/13] | Type: | B1 Patent specification | No.: | EP0476474 | Date: | 28.12.1994 | Language: | DE | [1994/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 09.01.1992 | Classification | IPC: | C07D307/89 | [1992/13] | CPC: |
C07D307/89 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1992/13] | Title | German: | 4-Amino-3-hydroxy-phthalid, sowie ein Verfahren zu seiner Herstellung | [1992/13] | English: | 4-Amino-3-hydroxy-phthalide and a method for its preparation | [1992/13] | French: | Amino-4 hydroxy-3 phtalide ainsi qu'un procédé pour sa préparation | [1992/13] | Examination procedure | 08.04.1992 | Examination requested [1992/23] | 22.04.1994 | Despatch of communication of intention to grant (Approval: No) | 16.06.1994 | Despatch of communication of intention to grant (Approval: later approval) | 21.06.1994 | Communication of intention to grant the patent | 03.08.1994 | Fee for grant paid | 03.08.1994 | Fee for publishing/printing paid | Opposition(s) | 29.09.1995 | No opposition filed within time limit [1995/51] | Fees paid | Renewal fee | 13.08.1993 | Renewal fee patent year 03 | 11.08.1994 | 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. | Documents cited: | Search | [A]DE2705414 (SMITH KLINE FRENCH LAB); | [A]US4730056 (LOWE III JOHN A [US]) | [A] - CHEMICAL ABSTRACTS, Band 78, Nr. 1, 8. JÛnner 1973, Columbus, Ohio, USA WATANABE, TOKUHIRO et al. "Indoles. III. New synthesis of 4-indolecarboxylic acid." Seite 339, Spalte 1, Zusammenfassung-Nr. 4 058h | [A] - CHEMICAL ABSTRACTS, Band 80, Nr. 25, 24. Juni 1974, Columbus, Ohio, USA AOKI, KATSUMICHI et al. "Fungicidal compositions containing 4-chlorophthalide derivatives." Seite 84, Spalte 2, Zusammenfassung-Nr. 141 791x | [A] - CHEMICAL ABSTRACTS, Band 90, Nr. 23, 4. Juni 1979, Columbus, Ohio, USA HOUBION, J. A. et al. "The synthesis of unamiguously substituted 3-hydroxyphtha- lides." Seite 640, Spalte 2, Zusammenfassung-Nr. 186 703t | [A] - CHEMIAL ABSTRACTS, Band 104, Nr. 1, 6. JÛnner 1986, Columbus, Ohio, USA SLOAN, KENNETH B. et al. "Further reactions of 3-hy- droxy-1(3H)-isobenzofuranone with amines." Seite 523, Spalte 1, Zusammenfassung-Nr. 5 724q |