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EP0081694
European procedure
Extract from the Register of European Patents
EP About this file: EP0081694
| EP0081694 - Process for the preparation of phosphorous acid monoalkyl esters [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.12.1985 Database last updated on 09.07.2024 | Most recent event Tooltip | 19.12.1985 | No opposition filed within time limit | published on 19.02.1986 [1986/08] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1983/25] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
Kleiner, Hans-Jerg, Dr. Altkönigstrasse 11a D-6242 Kronberg/Taunus / DE | 02 /
Thamm, Horst-Dieter, Dr. Parkstrasse 25 D-6233 Kelkheim (Taunus) / DE | [1983/25] | Application number, filing date | 82110560.8 | 16.11.1982 | [1983/25] | Priority number, date | DE19813146197 | 21.11.1981 Original published format: DE 3146197 | [1983/25] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0081694 | Date: | 22.06.1983 | Language: | DE | [1983/25] | Type: | B1 Patent specification | No.: | EP0081694 | Date: | 13.02.1985 | Language: | DE | [1985/07] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.04.1983 | Classification | IPC: | C07F9/48 | [1983/25] | CPC: |
C07F9/48 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL [1983/25] | Title | German: | Verfahren zur Herstellung von Phosphonigsäuremonoalkylestern | [1983/25] | English: | Process for the preparation of phosphorous acid monoalkyl esters | [1983/25] | French: | Procédé de préparation d'esters monoalkyliques d'acides phosphoneux | [1983/25] | Examination procedure | 12.07.1983 | Examination requested [1983/38] | 12.04.1984 | Despatch of a communication from the examining division (Time limit: M04) | 07.05.1984 | Reply to a communication from the examining division | 10.07.1984 | Despatch of communication of intention to grant (Approval: ) | 03.08.1984 | Communication of intention to grant the patent | 02.11.1984 | Fee for grant paid | 02.11.1984 | Fee for publishing/printing paid | Opposition(s) | 14.11.1985 | No opposition filed within time limit [1986/08] | Fees paid | Renewal fee | 10.10.1984 | 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]SU172792 ; | [A]SU161748 | [X] - Chemical Abstracts Band 79, Nr. 23, 10 Dezember 1973, Columbus, Ohio, USA, L.T. ELEPINA et al. "Phosphorylation of xylitol by phosphonous acids", Seite 410, Spalte 1, Abstract Nr. 137424s & Zh. Obshch. Khim. Band 43, Nr. 8, 1973, Seiten 1811-1816 | Examination | - Chemical Abstracts, Band 72, Seite 398, Zusammenfassung Nr. 10835f 1970 |