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EP0539991
European procedure
Extract from the Register of European Patents
EP About this file: EP0539991
| EP0539991 - Liquid crystal device and display apparatus [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 21.11.1997 Database last updated on 16.07.2024 | Most recent event Tooltip | 17.12.1999 | Lapse of the patent in a contracting state New state(s): GR | published on 02.02.2000 [2000/05] | Applicant(s) | For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP | [N/P] |
| Former [1993/18] | For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP | Inventor(s) | 01 /
Shinjo, Kenji, c/o Canon K.K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | 02 /
Kitayama, Hiroyuki, c/o Canon K.K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | 03 /
Asaoka, Masanobu, c/o Canon K.K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | 04 /
Terada, Masahiro, c/o Canon K.K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | 05 /
Yamada, Syuji, c/o Canon K.K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | 06 /
Mizuno, Hiroshi, c/o Canon Kabushiki K. 3-30-2, Shimomaruko Ohta-ku, Tokyo / JP | [1993/18] | Representative(s) | Pellmann, Hans-Bernd, et al Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4-6 80336 München / DE | [N/P] |
| Former [1993/18] | Pellmann, Hans-Bernd, Dipl.-Ing., et al Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München / DE | Application number, filing date | 92118521.1 | 29.10.1992 | [1993/18] | Priority number, date | JP19910310130 | 30.10.1991 Original published format: JP 31013091 | JP19920105272 | 01.04.1992 Original published format: JP 10527292 | [1993/18] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0539991 | Date: | 05.05.1993 | Language: | EN | [1993/18] | Type: | B1 Patent specification | No.: | EP0539991 | Date: | 08.01.1997 | Language: | EN | [1997/02] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 26.02.1993 | Classification | IPC: | G02F1/137, G02F1/1337 | [1993/18] | CPC: |
G02F1/1416 (EP,US);
G02F1/133746 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, PT, SE [1993/18] | Title | German: | Flüssigkristallvorrichtung und Anzeigevorrichtung | [1993/18] | English: | Liquid crystal device and display apparatus | [1993/18] | French: | Dispositif à cristal liquide et dispositif d'affichage | [1993/18] | Examination procedure | 29.10.1992 | Examination requested [1993/18] | 07.12.1994 | Despatch of a communication from the examining division (Time limit: M06) | 19.06.1995 | Reply to a communication from the examining division | 23.02.1996 | Despatch of communication of intention to grant (Approval: Yes) | 09.07.1996 | Communication of intention to grant the patent | 09.10.1996 | Fee for grant paid | 09.10.1996 | Fee for publishing/printing paid | Opposition(s) | 09.10.1997 | No opposition filed within time limit [1998/02] | Fees paid | Renewal fee | 25.10.1994 | Renewal fee patent year 03 | 27.10.1995 | Renewal fee patent year 04 | 29.10.1996 | 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 | AT | 08.01.1997 | BE | 08.01.1997 | CH | 08.01.1997 | DK | 08.01.1997 | GR | 08.01.1997 | LI | 08.01.1997 | PT | 08.04.1997 | [2000/05] |
| Former [1998/15] | AT | 08.01.1997 | |
| BE | 08.01.1997 | ||
| CH | 08.01.1997 | ||
| DK | 08.01.1997 | ||
| LI | 08.01.1997 | ||
| PT | 08.04.1997 | ||
| Former [1998/04] | AT | 08.01.1997 | |
| BE | 08.01.1997 | ||
| CH | 08.01.1997 | ||
| LI | 08.01.1997 | ||
| PT | 08.04.1997 | ||
| Former [1998/03] | AT | 08.01.1997 | |
| BE | 08.01.1997 | ||
| PT | 08.04.1997 | ||
| Former [1997/49] | AT | 08.01.1997 | |
| BE | 08.01.1997 | ||
| Former [1997/42] | AT | 08.01.1997 | Documents cited: | Search | [A]DE4022888 (SEIKOSHA KK [JP]); | [A]EP0444705 (CANON KK [JP]); | [A] - MITSUHIRO KODEN, ET AL., "THE STATES OF SURFACE-STABILIZED FERROELECTRIC LIQUID CRYSTAL WITH HIGH-PRETILT ALIGNING FILM", JAPANESE JOURNAL OF APPLIED PHYSICS, Japan Society of Applied Physics, JP, JP, (19911015), vol. 30., no. 10B., ISSN 0021-4922, pages L1823 - L1825., XP000235835 |