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EP0003500
European procedure
Extract from the Register of European Patents
EP About this file: EP0003500
| EP0003500 - Process for the synthesis of 1,2,4-triazole [Right-click to bookmark this link] | Status | Patent maintained as amended Status updated on 15.11.1991 Database last updated on 19.03.2026 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] | Inventor(s) | 01 /
Kaiser, Reinhard, Dr. Morgengraben 14 D-5000 Köln 80 / DE | 02 /
Steffan, Guido, Dr. Herzogenfeld 52 D-5068 Odenthal / DE | [N/P] | Application number, filing date | 79100059.9 | 10.01.1979 | Priority number, date | DE19782802491 | 20.01.1978 Original published format: DE 2802491 | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0003500 | Date: | 22.08.1979 | Language: | DE | [N/P] | Type: | B1 Patent specification | No.: | EP0003500 | Date: | 28.10.1981 | Language: | DE | [1981/43] | Type: | B2 New European patent specification | No.: | EP0003500 | Date: | 02.01.1992 | Language: | DE | [1992/01] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.06.1979 | Classification | IPC: | C07D249/08 | [1981/43] | CPC: |
C07D249/08 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, NL | Title | German: | Verfahren zur Herstellung von 1,2,4-Triazol | English: | Process for the synthesis of 1,2,4-triazole | French: | Procédé de synthèse du 1,2,4-triazole | Examination procedure | 10.01.1979 | Examination requested | 30.09.1980 | Despatch of a communication from the examining division (Time limit: M02) | 15.10.1980 | Reply to a communication from the examining division | 10.02.1981 | Despatch of communication of intention to grant (Approval: ) | 06.05.1981 | Communication of intention to grant the patent | 15.05.1981 | Fee for grant paid | 15.05.1981 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
20.03.1982
29.04.1982
ADMISSIBLE BASF Aktiengesellschaft -Patentabteilung - C6- Carl-Bosch-Strasse 38 D-67056 Ludwigshafen / DE | [N/P] |
| Former [1982/36] | |||
| Opponent(s) | 01
20.03.1982
29.04.1982
ADMISSIBLE BASF Aktiengesellschaft, Ludwigshafen -Patentabteilung - C6- Carl-Bosch-Strasse 38 D-67056 Ludwigshafen / DE | ||
| Former [1982/21] | |||
| Opponent(s) | 01
20.03.1982
ADMISSIBLE BASF Aktiengesellschaft, Ludwigshafen -Patentabteilung - C6- Carl-Bosch-Strasse 38 D-67056 Ludwigshafen / DE | 15.09.1982 | Communication of observations of patent proprietor (Time limit: M02) | 05.11.1982 | Reply of parties involved to observations of patent proprietor | 19.11.1982 | Invitation to proprietor to file observations on the notice of opposition | 31.01.1983 | Reply of patent proprietor to notice(s) of opposition | 28.09.1983 | Despatch of a communication from the opposition division (Time limit: M04) | 27.01.1984 | Reply to a communication from the opposition division | 18.07.1986 | Despatch of a communication from the opposition division (Time limit: M04) | 31.10.1986 | Reply to a communication from the opposition division | 24.10.1988 | Despatch of interlocutory decision in opposition | 24.01.1991 | Legal effect of interlocutory decision in opposition | 30.07.1991 | Despatch of communication that the patent will be maintained as amended | 10.09.1991 | Fee for printing new specification paid | Appeal following opposition | 18.11.1988 | Appeal received No. T0564/88 | 14.02.1989 | Statement of grounds filed | 24.01.1991 | Result of appeal procedure: maintenance in amended form | 24.01.1991 | Date of oral proceedings | 25.01.1991 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 24.12.1980 | 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 | JOURNAL OF THE AMERICAN CHEM. SOC., Vol. 77, 10-02-1955, C. AINSWORTH et al.: "Isomeric and nuclear-substituted beta-aminoethyl-1,2,4,-triazoles", Seiten 621-624 * Seite 621 * |