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EP0344537
European procedure
Extract from the Register of European Patents
EP About this file: EP0344537
| EP0344537 - Use of 1,1,1,4,4,4-hexafluorobutane as a blowing and insulating agent for the production of synthetic foams [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 14.01.1993 Database last updated on 07.03.2026 | Most recent event Tooltip | 14.01.1993 | No opposition filed within time limit | published on 03.03.1993 [1993/09] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1989/49] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Lamberts, Wilhelm, Dr. Roggendorfstrasse 61 D-5000 Köln 80 / DE | 02 /
Sommerfeld, Klaus-Dieter, Dr. Büscherhöfchen 11 D-5063 Overath / DE | 03 /
Bielefeldt, Dr. Beuthener Strasse 13 D-4030 Ratingen 6 / DE | 04 /
Marhold, Albrecht, Dr. Carl-Duisberg-Strasse 329 D-5090 Leverkusen 1 / DE | 05 /
Negele, Michael, Dr. Wolfskaul 6 D-5000 Köln 80 / DE | [1989/49] | Application number, filing date | 89109004.5 | 19.05.1989 | [1989/49] | Priority number, date | DE19883818692 | 01.06.1988 Original published format: DE 3818692 | [1989/49] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0344537 | Date: | 06.12.1989 | Language: | DE | [1989/49] | Type: | B1 Patent specification | No.: | EP0344537 | Date: | 11.03.1992 | Language: | DE | [1992/11] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.09.1989 | Classification | IPC: | C08J9/14, C08J9/00, // C08L75/04 | [1989/49] | CPC: |
C08J9/14 (EP,US);
C07C17/00 (EP,US);
C08J9/146 (EP,US);
C08J2375/04 (EP,US);
Y10S521/908 (EP,US)
| C-Set: |
C07C17/00, C07C19/08 (EP,US)
| Designated contracting states | BE, CH, DE, ES, FR, GB, IT, LI, NL, SE [1989/49] | Title | German: | Verwendung von 1,1,1,4,4,4-Hexafluorbutan als Treib- und Dämmgas für die Herstellung von Kunststoff-Schaumstoffen | [1989/49] | English: | Use of 1,1,1,4,4,4-hexafluorobutane as a blowing and insulating agent for the production of synthetic foams | [1989/49] | French: | Utilisation de 1,1,1,4,4,4-hexafluorobutane comme agent gonflant et isolant pour la fabrication de mousses synthétiques | [1989/49] | Examination procedure | 19.05.1989 | Examination requested [1989/49] | 28.08.1991 | Despatch of communication of intention to grant (Approval: Yes) | 10.09.1991 | Communication of intention to grant the patent | 04.11.1991 | Fee for grant paid | 04.11.1991 | Fee for publishing/printing paid | Opposition(s) | 12.12.1992 | No opposition filed within time limit [1993/09] | Fees paid | Renewal fee | 28.12.1990 | 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 | [A] JOURNAL OF THE CHEMICAL SOCIETY, Part III, 1952, Seiten 2449 - 4088, London, GB; 'The addition of free radicals to unsaturated systems. Part I.' [A] |