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EP0176900
European procedure
Extract from the Register of European Patents
EP About this file: EP0176900
| EP0176900 - Process for the manufacture of mixed crystals of pigments on the basis of diimides of perylene tetracarboxylic acid, and their use [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 27.02.1992 Database last updated on 27.07.2024 | Most recent event Tooltip | 27.02.1992 | No opposition filed within time limit | published on 15.04.1992 [1992/16] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1986/15] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
Spietschka, Ernst, Dr. Kirchweg 3 D-6270 Idstein Taunus / DE | 02 /
Tröster, Helmut, Dr. Am Erdbeerstein 44 D-6240 Königstein Taunus / DE | [1986/15] | Application number, filing date | 85111992.5 | 21.09.1985 | [1986/15] | Priority number, date | DE19843436206 | 03.10.1984 Original published format: DE 3436206 | [1986/15] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0176900 | Date: | 09.04.1986 | Language: | DE | [1986/15] | Type: | A3 Search report | No.: | EP0176900 | Date: | 25.10.1989 | Language: | DE | [1989/43] | Type: | B1 Patent specification | No.: | EP0176900 | Date: | 24.04.1991 | Language: | DE | [1991/17] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.09.1989 | Classification | IPC: | C09B67/22, C08K5/34, // C09B67/48, C09B5/62 | [1986/15] | CPC: |
C09B67/0034 (EP,US);
C09B5/62 (EP,US)
| Designated contracting states | CH, DE, FR, GB, IT, LI [1986/15] | Title | German: | Verfahren zur Herstellung von Mischkristallpigmenten auf der Basis von Perylentetracarbonsäurediimiden und deren Verwendung | [1986/15] | English: | Process for the manufacture of mixed crystals of pigments on the basis of diimides of perylene tetracarboxylic acid, and their use | [1986/15] | French: | Procédé de fabrication de cristaux mixtes de pigments à base de diimides de l'acide pérylène tétracarboxylique et leur utilisation | [1986/15] | Examination procedure | 29.11.1989 | Examination requested [1990/04] | 24.08.1990 | Despatch of communication of intention to grant (Approval: Yes) | 28.09.1990 | Communication of intention to grant the patent | 20.12.1990 | Fee for grant paid | 20.12.1990 | Fee for publishing/printing paid | Opposition(s) | 25.01.1992 | No opposition filed within time limit [1992/16] | Fees paid | Renewal fee | 17.08.1987 | Renewal fee patent year 03 | 11.08.1988 | Renewal fee patent year 04 | 11.08.1989 | Renewal fee patent year 05 | 11.08.1990 | Renewal fee patent year 06 | 21.12.1990 | Renewal fee patent year 07 |
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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]JP7607025 ; | EP0023191 [ ] (CIBA GEIGY AG [CH]); | DE1067157 [ ]; | US3554776 [ ] (GERSON HERMAN, et al); | FR2327288 [ ] (BASF AG [DE]); | DE1113773 [ ] (HOECHST AG); | DE2009073 [ ] | [A] - CHEMICAL ABSTRACTS, Band 84, Nr. 24, 14. Juni 1976, Seiten 82-83, Zusammenfassung Nr. 166251s, Columbus, Ohio, US; & JP-A-76 07 025 (MITSUBISHI CHEMICAL INDUSTRIES CO., LTD) 21-01-1976 (Kat. D,A), & JP7607025 A 00000000 |