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EP0599928
European procedure
Extract from the Register of European Patents
EP About this file: EP0599928
| EP0599928 - STABILIZED COMPLEX LIGANDS AND THEIR USE IN LIQUID CRYSTAL DISPLAYS [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 23.01.1998 Database last updated on 07.03.2026 | Most recent event Tooltip | 23.01.1998 | No opposition filed within time limit | published on 11.03.1998 [1998/11] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1994/23] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
MANERO, Javier Sindlinger Bahnstrasse 163 D-6230 Frankfurt am Main 80 / DE | 02 /
RÖSCH, Norbert Geisenheimer Strasse 95 D-6000 Frankfurt am Main / DE | [1994/23] | Application number, filing date | 92917608.9 | 19.08.1992 | [1994/23] | WO1992EP01895 | Priority number, date | DE19914127658 | 21.08.1991 Original published format: DE 4127658 | [1994/23] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | WO9304142 | Date: | 04.03.1993 | Language: | DE | [1993/06] | Type: | A1 Application with search report | No.: | EP0599928 | Date: | 08.06.1994 | Language: | DE | The application published by WIPO in one of the EPO official languages on 04.03.1993 takes the place of the publication of the European patent application. | [1994/23] | Type: | B1 Patent specification | No.: | EP0599928 | Date: | 19.03.1997 | Language: | DE | [1997/12] | Search report(s) | International search report - published on: | EP | 04.03.1993 | Classification | IPC: | C09K19/58, G02F1/1337, C07D273/00, C07D285/00, C07D291/02, C07D257/02, C07D259/00, C07D273/01 | [1994/23] | CPC: |
C07D273/00 (EP,US);
C09K19/584 (EP,US);
G02F1/133711 (EP,US)
| Designated contracting states | CH, DE, ES, FR, GB, IT, LI, NL, PT [1997/12] |
| Former [1994/26] | CH, DE, ES, FR, GB, IT, LI, NL | ||
| Former [1994/23] | AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LI, LU, MC, NL, SE | Title | German: | STABILISIERTE KOMPLEXLIGANDEN UND DEREN VERWENDUNG IN FLÜSSIGKRISTALLDISPLAYS | [1994/23] | English: | STABILIZED COMPLEX LIGANDS AND THEIR USE IN LIQUID CRYSTAL DISPLAYS | [1994/23] | French: | LIGANDS COMPLEXES STABILISES ET LEUR UTILISATION DANS DES AFFICHAGES A CRISTAUX LIQUIDES | [1994/23] | Miscellaneous | EPB 1995/31: Verbunden mit 92114143.8/0528415 (europäische Anmeldenummer/Veröffentlichungsnummer) durch Entscheidung vom 19.06.95 | EPB 1995/31: Consolidated with 92114143.8/0528415 (European application no./publication no.) by decision dated 19.06.95 | EPB 1995/31: Jointe à la demande no. 92114143.8/0528415 (numéro de dépôt/numéro de publication de la demande européenne) par décision du 19.06.95 | Entry into regional phase | 22.12.1993 | National basic fee paid | 22.12.1993 | Designation fee(s) paid | 22.12.1993 | Examination fee paid | Examination procedure | 25.02.1993 | Request for preliminary examination filed International Preliminary Examining Authority: EP | 22.12.1993 | Examination requested [1994/23] | 31.10.1994 | Despatch of a communication from the examining division (Time limit: M04) | 21.04.1995 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time | 28.04.1995 | Reply to a communication from the examining division | 18.12.1995 | Despatch of communication of intention to grant (Approval: No) | 25.04.1996 | Despatch of communication of intention to grant (Approval: later approval) | 30.04.1996 | Communication of intention to grant the patent | 12.08.1996 | Fee for grant paid | 12.08.1996 | Fee for publishing/printing paid | Opposition(s) | 20.12.1997 | No opposition filed within time limit [1998/11] | Request for further processing for: | 28.04.1995 | Request for further processing filed | 28.04.1995 | Full payment received (date of receipt of payment) Request granted | 09.06.1995 | Decision despatched | Fees paid | Renewal fee | 07.07.1994 | Renewal fee patent year 03 | 31.08.1995 | Renewal fee patent year 04 | 02.09.1996 | 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. | Lapses during opposition Tooltip | PT | 24.06.1997 | [1998/03] | Cited in | International search | [A] JP54091253 | [A] PATENT ABSTRACTS OF JAPAN vol. 3, no. 113 19. September 1977 & JP,A,54 091 253 ( NAKAGAWA ) [A] |