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EP0013958
European procedure
Extract from the Register of European Patents
EP About this file: EP0013958
| EP0013958 - Process for the preparation of carbonic acid esters and polycarbonates [Right-click to bookmark this link] | |||
| Former [1980/16] | Process for the preparation of carbonic acid esters and its application to the preparation of polycarbonates | ||
| [1982/06] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 14.11.2024 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1980/16] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Heitz, Walter, Prof. Dr. Am Schmidtborn 5 D-3575 Kirchhain 1 / DE | 02 /
Ball, Peter, Dr. Am Burger Wald 71 D-8267 Neu Oetting / DE | [1980/16] | Application number, filing date | 80100267.6 | 21.01.1980 | [1980/16] | Priority number, date | DE19792903507 | 30.01.1979 Original published format: DE 2903507 | [1980/16] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0013958 | Date: | 06.08.1980 | Language: | DE | [1980/16] | Type: | B1 Patent specification | No.: | EP0013958 | Date: | 10.02.1982 | Language: | DE | [1982/06] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 22.05.1980 | Classification | IPC: | C07C68/00, C08G63/62 | [1980/16] | CPC: |
C07C68/00 (EP,US);
C08G64/38 (EP,US)
| C-Set: |
C07C68/00, C07C69/96 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL [1980/16] | Title | German: | Verfahren zur Herstellung von Kohlensäureestern und Polycarbonaten | [1982/06] | English: | Process for the preparation of carbonic acid esters and polycarbonates | [1982/06] | French: | Procédé de préparation d'esters de l'acide carbonique et de polycarbonates | [1982/06] |
| Former [1980/16] | Verfahren zur Herstellung von Kohlensäureestern und seine Anwendung zur Herstellung von Polycarbonaten | ||
| Former [1980/16] | Process for the preparation of carbonic acid esters and its application to the preparation of polycarbonates | ||
| Former [1980/16] | Procédé de préparation d'esters de l'acide carbonique et application à la fabrication de polycarbonates | Examination procedure | 21.01.1980 | Examination requested [1980/22] | 17.11.1980 | Despatch of a communication from the examining division (Time limit: {0}) | 26.02.1981 | Despatch of a communication from the examining division (Time limit: M02) | 30.03.1981 | Reply to a communication from the examining division | 12.05.1981 | Despatch of communication of intention to grant (Approval: ) | 10.08.1981 | Communication of intention to grant the patent | 19.08.1981 | Fee for grant paid | 19.08.1981 | Fee for publishing/printing paid | Opposition(s) | 10.11.1982 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 15.01.1982 | Renewal fee patent year 03 |
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