-
EP0442266
European procedure
Extract from the Register of European Patents
EP About this file: EP0442266
| EP0442266 - Tolan derivatives, liquid crystal compositions containing them, and liquid crystal elements using them [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.11.1995 Database last updated on 31.08.2024 | Most recent event Tooltip | 01.11.1995 | No opposition filed within time limit | published on 20.12.1995 [1995/51] | Applicant(s) | For all designated states Seiko Epson Corporation 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo-to / JP | [N/P] |
| Former [1991/34] | For all designated states SEIKO EPSON CORPORATION 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo-to / JP | Inventor(s) | 01 /
Yamada, Shuhei c/o Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken / JP | [1991/34] | Representative(s) | MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB Paul-Heyse-Strasse 29 80336 München / DE | [N/P] |
| Former [1993/24] | Hoffmann, Eckart, Dipl.-Ing., et al Patentanwalt, Bahnhofstrasse 103 D-82166 Gräfelfing / DE | ||
| Former [1991/34] | Blumbach Weser Bergen Kramer Zwirner Hoffmann Patentanwälte Radeckestrasse 43 D-81245 München / DE | Application number, filing date | 91100404.2 | 15.01.1991 | [1991/34] | Priority number, date | JP19900035692 | 16.02.1990 Original published format: JP 3569290 | JP19900055570 | 07.03.1990 Original published format: JP 5557090 | JP19900096916 | 12.04.1990 Original published format: JP 9691690 | JP19900146766 | 05.06.1990 Original published format: JP 14676690 | JP19900148095 | 06.06.1990 Original published format: JP 14809590 | [1991/34] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0442266 | Date: | 21.08.1991 | Language: | EN | [1991/34] | Type: | B1 Patent specification | No.: | EP0442266 | Date: | 28.12.1994 | Language: | EN | [1994/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.06.1991 | Classification | IPC: | C07C255/50, C09K19/18, G02F1/137 | [1991/34] | CPC: |
C07C255/50 (EP,US);
C09K19/18 (EP,US);
C09K19/3059 (EP,US);
C07C2601/14 (EP,US)
| Designated contracting states | CH, DE, GB, LI [1991/34] | Title | German: | Tolanderivate, sie enthaltende flüssigkristalline Zusammensetzungen und sie verwendende Flüssigkristallelemente | [1991/34] | English: | Tolan derivatives, liquid crystal compositions containing them, and liquid crystal elements using them | [1991/34] | French: | Dérivés du tolane, compositions liquido-cristalliques les contenant, et éléments liquido-cristalliques les employant | [1991/34] | Examination procedure | 09.07.1991 | Examination requested [1991/36] | 03.03.1994 | Despatch of communication of intention to grant (Approval: Yes) | 13.06.1994 | Communication of intention to grant the patent | 16.08.1994 | Fee for grant paid | 16.08.1994 | Fee for publishing/printing paid | Opposition(s) | 29.09.1995 | No opposition filed within time limit [1995/51] | Fees paid | Renewal fee | 28.01.1993 | Renewal fee patent year 03 | 20.12.1993 | Renewal fee patent year 04 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| 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]DE3906038 (MERCK PATENT GMBH [DE]); | [A]DE2504641 (COMMISSARIAT ENERGIE ATOMIQUE); | [AP]EP0377516 (CHISSO CORP [JP]) |