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EP0152827
European procedure
Extract from the Register of European Patents
EP About this file: EP0152827
| EP0152827 - Liquid crystal color display apparatus [Right-click to bookmark this link] | |||
| Former [1985/35] | Color liquid crystal display apparatus | ||
| [1989/42] | Status | No opposition filed within time limit Status updated on 09.08.1990 Database last updated on 31.08.2024 | Most recent event Tooltip | 09.08.1990 | No opposition filed within time limit | published on 26.09.1990 [1990/39] | Applicant(s) | For all designated states MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 / JP | [N/P] |
| Former [1985/35] | For all designated states MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 1006, Ohaza Kadoma Kadoma-shi, Osaka-fu, 571 / JP | Inventor(s) | 01 /
Ogawa, Tetsu 8, Enmyoji-Tonoyama 1-chome Oyamazaki-cho Otokuni-gun Koyoto-pref., 618 / JP | 02 /
Nagata, Seiichi 10-4, Takeshirodai 2-cho Sakai City, 590-01 / JP | 03 /
Hotta, Sadayoshi 1-10, Kouda 1-chome Hirakata City, 573 / JP | [1985/35] | Representative(s) | advotec. Patent- und Rechtsanwaltspartnerschaft Tappe mbB Widenmayerstraße 4 80538 München / DE | [N/P] |
| Former [1986/14] | Dr. Elisabeth Jung Dr. Jürgen Schirdewahn Dipl.-Ing. Claus Gernhardt Postfach 40 14 68 D-80714 München / DE | ||
| Former [1985/35] | Dr. Elisabeth Jung Dr. Jürgen Schirdewahn Dipl.-Ing. Claus Gernhardt Postfach 40 14 68 D-80714 München / DE | Application number, filing date | 85100951.4 | 30.01.1985 | [1985/35] | Priority number, date | JP19840016552 | 31.01.1984 Original published format: JP 1655284 | JP19840016553 | 31.01.1984 Original published format: JP 1655384 | JP19840016554 | 31.01.1984 Original published format: JP 1655484 | [1985/35] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0152827 | Date: | 28.08.1985 | Language: | EN | [1985/35] | Type: | A3 Search report | No.: | EP0152827 | Date: | 02.10.1985 | Language: | EN | [1985/40] | Type: | B1 Patent specification | No.: | EP0152827 | Date: | 18.10.1989 | Language: | EN | [1989/42] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 30.07.1985 | Classification | IPC: | G02F1/133, G02F1/137 | [1985/35] | CPC: |
G02F1/1396 (EP,US);
G02F1/133371 (EP,US);
G02F1/133514 (EP,US)
| Designated contracting states | DE, FR, GB [1985/35] | Title | German: | Flüssigkristallfarbanzeigevorrichtung | [1989/42] | English: | Liquid crystal color display apparatus | [1989/42] | French: | Dispositif d'affichage en couleurs à cristal liquide | [1989/42] |
| Former [1985/35] | Farb-Flüssigkristallanzeigevorrichtung | ||
| Former [1985/35] | Color liquid crystal display apparatus | ||
| Former [1985/35] | Dispositif d'affichage à cristal liquide en couleurs | Examination procedure | 26.02.1985 | Examination requested [1985/35] | 29.07.1987 | Despatch of a communication from the examining division (Time limit: M06) | 05.02.1988 | Reply to a communication from the examining division | 09.05.1988 | Despatch of a communication from the examining division (Time limit: M06) | 11.11.1988 | Reply to a communication from the examining division | 22.02.1989 | Despatch of communication of intention to grant (Approval: Yes) | 14.04.1989 | Communication of intention to grant the patent | 29.06.1989 | Fee for grant paid | 29.06.1989 | Fee for publishing/printing paid | Opposition(s) | 19.07.1990 | No opposition filed within time limit [1990/39] | Fees paid | Renewal fee | 29.01.1987 | Renewal fee patent year 03 | 29.01.1988 | Renewal fee patent year 04 | 27.01.1989 | 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]JP5784434 ; | [A]US4387965 (HARA YOSHIYUKI [JP]) | [AD] - JOURNAL OF PHYSICS D: APPLIED PHYSICS, vol. 8, no. 13, 1975, pages 1575-1584, Letchworth, Hertfordshire, GB; C.H.GOOCH et al.: "The optical properties of twisted nematic liquid crystal structures with twist angles 90 " | [A] - PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 168 (P-139)[1046], 2nd September 1982; & JP - A - 57 84 434 (CASIO KEISANKI K.K.) 26-05-1982, & JP5784434 A 00000000 | [A] - CONFERENCE RECORD OF 1982 INTERNATIONAL DISPLAY RESEARCH CONFERENCE, Cherry Hill, N.J., 19th-21st October 1982, IEEE, pages 166-170, New York, US; T.UCHIDA et al.: "A full-color matrix LCD with color layers on the electrodes" |