EP0492243 - Process for separating polycarbonates from their solution, using fluids containing carbon dioxide [Right-click to bookmark this link] | |||
Former [1992/27] | Process for separating polymers from their solution, using fluids containing carbon dioxide | ||
[1996/34] | Status | No opposition filed within time limit Status updated on 27.06.1997 Database last updated on 22.08.2024 | Most recent event Tooltip | 27.06.1997 | No opposition filed within time limit | published on 13.08.1997 [1997/33] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
Former [1992/27] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Paul, Hanns-Ingolf, Dr. Hahnenweg 3 W-5000 Köln 80 / DE | 02 /
Treckmann, Rolf, Dipl.-Ing. Buschfeldstrasse 2 W-5000 Köln 80 / DE | 03 /
Weymans, Günther, Dr. Körnerstrasse 5 W-5090 Leverkusen / DE | 04 /
Kirsch, Jürgen, Dr. Völklingerstrasse 20 W-5090 Leverkusen / DE | 05 /
Heuser, Jürgen, Dr. Minkweg 29a W-4150 Krefeld / DE | 06 /
Elgeti, Klaus, Prof. Dr. Am Hermannshof 8 W-5060 Bergisch Gladbach 2 / DE | [1992/27] | Application number, filing date | 91121060.7 | 09.12.1991 | [1992/27] | Priority number, date | DE19904040855 | 20.12.1990 Original published format: DE 4040855 | DE19914118230 | 04.06.1991 Original published format: DE 4118230 | [1992/27] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0492243 | Date: | 01.07.1992 | Language: | DE | [1992/27] | Type: | A3 Search report | No.: | EP0492243 | Date: | 27.01.1993 | Language: | DE | [1993/04] | Type: | B1 Patent specification | No.: | EP0492243 | Date: | 21.08.1996 | Language: | DE | [1996/34] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.12.1992 | Classification | IPC: | C08J11/06 | [1996/34] | CPC: |
C08G85/00 (EP,US);
C08G63/89 (EP,US);
C08G64/403 (EP,US)
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Former IPC [1993/04] | C08G85/00, C08G64/40, C08G75/02 | ||
Former IPC [1992/27] | C08G85/00 | Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1992/27] | Title | German: | Verfahren zur Isolierung von Polycarbonaten aus ihren Lösungsmitteln mit Kohlendioxid-haltigen Flüssigkeiten | [1996/34] | English: | Process for separating polycarbonates from their solution, using fluids containing carbon dioxide | [1996/34] | French: | Procédé de séparation de polycarbonates en solution, avec des fluides renfermant du dioxyde de carbone | [1996/34] |
Former [1992/27] | Verfahren zur Isolierung von Polymeren aus ihren Lösungsmitteln mit Kohlendioxid-haltigen Flüssigkeiten | ||
Former [1992/27] | Process for separating polymers from their solution, using fluids containing carbon dioxide | ||
Former [1992/27] | Procédé de séparation de polymères en solution, avec des fluides renfermant du dioxyde de carbone | Examination procedure | 26.04.1993 | Examination requested [1993/25] | 29.12.1994 | Despatch of a communication from the examining division (Time limit: M06) | 12.05.1995 | Reply to a communication from the examining division | 16.10.1995 | Despatch of a communication from the examining division (Time limit: M04) | 24.11.1995 | Reply to a communication from the examining division | 17.01.1996 | Despatch of communication of intention to grant (Approval: Yes) | 31.01.1996 | Communication of intention to grant the patent | 14.03.1996 | Fee for grant paid | 14.03.1996 | Fee for publishing/printing paid | Opposition(s) | 22.05.1997 | No opposition filed within time limit [1997/33] | Fees paid | Renewal fee | 19.11.1993 | Renewal fee patent year 03 | 14.11.1994 | Renewal fee patent year 04 | 27.11.1995 | 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 | [A]EP0334314 (MITSUBISHI GAS CHEMICAL CO [JP]); | [X]EP0184935 | [X] - MACROMOLECULES Bd. 18, 1. April 1985, Seiten 674 - 680 MCHUGH 'separating polymer solutions with supercritical fluids' |