EP0379315 - Electro-optical liquid crystal device [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 23.03.1995 Database last updated on 18.01.2025 | Most recent event Tooltip | 23.03.1995 | No opposition filed within time limit | published on 10.05.1995 [1995/19] | Applicant(s) | For all designated states Seiko Epson Corporation 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo / JP | [N/P] |
Former [1994/32] | For all designated states SEIKO EPSON CORPORATION 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo / JP | ||
Former [1990/30] | For all designated states SEIKO EPSON CORPORATION 4-1, Nishi-shinjuku 2-chome, Shinjuku-ku Tokyo 163 / JP | Inventor(s) | 01 /
Okumura, Osamu c/o Seiko Epson Corporation, 3-5 Owa 3-chome Suwa-shi, Nagano-ken / JP | 02 /
Toki, Motoyuki c/o Seiko Epson Corporation, 3-5 Owa 3-chome Suwa-shi, Nagano-ken / JP | 03 /
Horiguchi, Hirosada c/o Seiko Epson Corporation, 3-5 Owa 3-chome Suwa-shi, Nagano-ken / JP | [1990/30] | Representative(s) | Sturt, Clifford Mark, et al Miller Sturt Kenyon 9 John Street London WC1N 2ES / GB | [N/P] |
Former [1995/13] | Sturt, Clifford Mark, et al J. MILLER & CO. 34 Bedford Row Holborn London WC1R 4JH / GB | ||
Former [1993/26] | Miller, Joseph J. MILLER & CO. 34 Bedford Row, Holborn London WC1R 4JH / GB | ||
Former [1990/30] | Caro, William Egerton J. MILLER & CO. Lincoln House 296-302 High Holborn London WC1V 7JH / GB | Application number, filing date | 90300373.9 | 12.01.1990 | [1990/30] | Priority number, date | JP19890010405 | 19.01.1989 Original published format: JP 1040589 | JP19890036623 | 16.02.1989 Original published format: JP 3662389 | JP19890037570 | 17.02.1989 Original published format: JP 3757089 | JP19890045609 | 27.02.1989 Original published format: JP 4560989 | JP19890072815 | 24.03.1989 Original published format: JP 7281589 | JP19890076114 | 28.03.1989 Original published format: JP 7611489 | JP19890087436 | 06.04.1989 Original published format: JP 8743689 | JP19890105019 | 25.04.1989 Original published format: JP 10501989 | JP19890108571 | 27.04.1989 Original published format: JP 10857189 | [1990/30] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0379315 | Date: | 25.07.1990 | Language: | EN | [1990/30] | Type: | A3 Search report | No.: | EP0379315 | Date: | 24.04.1991 | Language: | EN | [1991/17] | Type: | B1 Patent specification | No.: | EP0379315 | Date: | 18.05.1994 | Language: | EN | [1994/20] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.03.1991 | Classification | IPC: | G02F1/1335 | [1990/30] | CPC: |
G02F1/13363 (EP,US);
G02F1/133637 (EP,US);
G02F1/1393 (EP,US);
G02F1/1396 (EP,US);
G02F1/1397 (EP,US);
G02F2413/02 (EP,US);
| Designated contracting states | DE, FR, GB [1990/30] | Title | German: | Elektrooptische Flüssigkristall-Anzeigevorrichtung | [1990/30] | English: | Electro-optical liquid crystal device | [1990/30] | French: | Dispositif d'affichage électro-optique à cristal liquide | [1990/30] | Examination procedure | 13.08.1991 | Examination requested [1991/41] | 24.03.1993 | Despatch of communication of intention to grant (Approval: Yes) | 09.07.1993 | Communication of intention to grant the patent | 06.10.1993 | Fee for grant paid | 06.10.1993 | Fee for publishing/printing paid | Opposition(s) | 21.02.1995 | No opposition filed within time limit [1995/19] | Fees paid | Renewal fee | 30.01.1992 | Renewal fee patent year 03 | 29.01.1993 | Renewal fee patent year 04 | 26.01.1994 | 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 | [AP]EP0349900 (STANLEY ELECTRIC CO LTD [JP], et al); | [A]EP0239433 (COMMISSARIAT ENERGIE ATOMIQUE [FR]); | [A]GB1462978 (RANK ORGANISATION LTD); | [A]EP0246842 (SEIKO EPSON CORP [JP]) | [A] - CONFERENCE RECORD OF THE 1988 INTERNATIONAL DISPLAY RESEARCH CONFERENCE, San Diego, CA, 4th - 6th October 1988, pages 159-160, IEEE, New York, US; I. FUKUDA et al.: "Achromatic supertwisted nematic LCD using birefringent film" |