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EP0056159
European procedure
Extract from the Register of European Patents
EP About this file: EP0056159
| EP0056159 - Process for the production of isocyanurate groups containing polyisocyanates and their use for the production of polyurethanes [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 15.12.1986 Database last updated on 06.07.2024 | Most recent event Tooltip | 15.12.1986 | No opposition filed within time limit | published on 04.02.1987 [1987/06] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1982/29] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Stemmler, Ingo, Dr. Buschweg 21 D-5068 Odenthal / DE | 02 /
Müller, Hanns Peter, Dr. Im Kerberich 6 D-5068 Odenthal / DE | 03 /
Wagner, Kuno, Dr. Am Kiesberg 8 D-5090 Leverkusen 1 / DE | [1982/29] | Application number, filing date | 81110813.3 | 29.12.1981 | [1982/29] | Priority number, date | DE19813100263 | 08.01.1981 Original published format: DE 3100263 | [1982/29] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0056159 | Date: | 21.07.1982 | Language: | DE | [1982/29] | Type: | B1 Patent specification | No.: | EP0056159 | Date: | 19.02.1986 | Language: | DE | [1986/08] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.04.1982 | Classification | IPC: | C08G18/02, C07D251/34, C08G18/22, C08G18/79, C08G18/80 | [1982/29] | CPC: |
C07D251/34 (EP,US);
C08G18/791 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT [1982/29] | Title | German: | Verfahren zur Herstellung von Isocyanuratgruppen aufweisenden Polyisocyanaten und ihre Verwendung bei der Herstellung von Polyurethanen | [1982/29] | English: | Process for the production of isocyanurate groups containing polyisocyanates and their use for the production of polyurethanes | [1982/29] | French: | Procédé de préparation de polyisocyanates contenant des groupes isocyanurates et leur utilisation pour la préparation de polyuréthanes | [1982/29] | Examination procedure | 29.12.1981 | Examination requested [1982/29] | 23.09.1983 | Despatch of a communication from the examining division (Time limit: M04) | 31.10.1983 | Reply to a communication from the examining division | 25.05.1984 | Despatch of a communication from the examining division (Time limit: M02) | 22.06.1984 | Reply to a communication from the examining division | 12.12.1984 | Despatch of a communication from the examining division (Time limit: M04) | 24.12.1984 | Reply to a communication from the examining division | 07.05.1985 | Despatch of communication of intention to grant (Approval: ) | 13.08.1985 | Communication of intention to grant the patent | 17.08.1985 | Fee for grant paid | 17.08.1985 | Fee for publishing/printing paid | Opposition(s) | 20.11.1986 | No opposition filed within time limit [1987/06] | Fees paid | Renewal fee | 28.11.1983 | Renewal fee patent year 03 | 06.12.1984 | Renewal fee patent year 04 | 22.11.1985 | Renewal fee patent year 05 |
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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 | US2952665 [ ] (WILHELM BUNGE, et al); | DD105813 [ ]; | GB1433642 [ ] (CELOTEX CORP); | DE1954093 [ ]; | DE3006634 [ ] (BASF AG [DE]) |