EP0445602 - Process for the preparation of mixtures of diphenylmethane-diisocyanates and polyphenylmethylene-polyisocyanates with a reduced iodic colorimetric measure [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 08.03.1996 Database last updated on 02.09.2024 | Most recent event Tooltip | 08.03.1996 | No opposition filed within time limit | published on 24.04.1996 [1996/17] | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
Former [1991/37] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Scherzer, Dietrich, Dr. Prager Strasse 33 W-6700 Ludwigshafen / DE | 02 /
Minges, Roland, Dr. Auf der Setz 23 W-6718 Gruenstadt / DE | 03 /
Langer, Werner, Dr. Wittelsbachstrasse 41 W-6700 Ludwigshafen / DE | 04 /
Bruchmann, Bernd, Dr. Giselherstrasse 79 W-6700 Ludwigshafen / DE | 05 /
Heider, Wolfgang Albert-Einstein-Allee 16 W-6703 Limburgerhof / DE | 06 /
Keller, Peter, Dr. Brunnengasse 24 W-6940 Weinheim / DE | 07 /
Schmitt, Arnold Burgunderstrasse 13 W-6701 Friedelsheim / DE | 08 /
Van Pee, Willy, Dr. Bunderbeeklaan 18 B-2080 Kapellen / BE | [1991/37] | Application number, filing date | 91102593.0 | 22.02.1991 | [1991/37] | Priority number, date | DE19904006976 | 06.03.1990 Original published format: DE 4006976 | [1991/37] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0445602 | Date: | 11.09.1991 | Language: | DE | [1991/37] | Type: | A3 Search report | No.: | EP0445602 | Date: | 15.04.1992 | Language: | DE | [1992/16] | Type: | B1 Patent specification | No.: | EP0445602 | Date: | 03.05.1995 | Language: | DE | [1995/18] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.02.1992 | Classification | IPC: | C07C263/20, C07C265/14 | [1995/18] | CPC: |
C07C263/18 (EP,US);
C08L79/00 (KR);
C07C263/20 (EP,US)
| C-Set: |
C07C263/18, C07C265/14 (EP,US);
C07C263/20, C07C265/14 (US,EP) |
Former IPC [1991/37] | C07C265/14 | Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, NL, SE [1991/37] | Title | German: | Verfahren zur Herstellung von Mischungen aus Diphenylmethan-diisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl | [1991/37] | English: | Process for the preparation of mixtures of diphenylmethane-diisocyanates and polyphenylmethylene-polyisocyanates with a reduced iodic colorimetric measure | [1991/37] | French: | Procédé pour la préparation de mélanges comprenant des diphénylméthane-diisocyanates et des polyphénylméthylène-polyisocyanates ayant une mesure colorimétrique à base d'iode réduite | [1991/37] | Examination procedure | 10.09.1992 | Examination requested [1992/46] | 19.01.1994 | Despatch of a communication from the examining division (Time limit: M04) | 04.05.1994 | Reply to a communication from the examining division | 29.06.1994 | Despatch of communication of intention to grant (Approval: No) | 10.10.1994 | Despatch of communication of intention to grant (Approval: later approval) | 19.10.1994 | Communication of intention to grant the patent | 09.11.1994 | Fee for grant paid | 09.11.1994 | Fee for publishing/printing paid | Opposition(s) | 06.02.1996 | No opposition filed within time limit [1996/17] | Fees paid | Renewal fee | 16.02.1993 | Renewal fee patent year 03 | 17.02.1994 | Renewal fee patent year 04 | 25.02.1995 | 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]GB1014043 (ICI LTD); | [X]GB1042858 (ALLIED CHEM); | [A]US3644457 (KONIG KLAUS, et al); | [X]DE2804375 (MOBAY CHEMICAL CORP) |