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EP0872759
European procedure
Extract from the Register of European Patents
EP About this file: EP0872759
| EP0872759 - Liquid crystal display device for a color display panel [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 18.10.2002 Database last updated on 11.04.2026 | Most recent event Tooltip | 18.10.2002 | No opposition filed within time limit | published on 04.12.2002 [2002/49] | Applicant(s) | For all designated states ASULAB S.A. Faubourg du Lac 6 2501 Bienne / CH | [N/P] |
| Former [1998/43] | For all designated states ASULAB S.A. Faubourg du Lac 6 CH-2501 Bienne / CH | Inventor(s) | 01 /
Kipfer, Peter Rue des Saars 127 2000 Neuchâtel / CH | 02 /
Herzig, Hans-Peter Bel-Air 11 2000 Neuchâtel / CH | 03 /
Klappert, Rolf Maillefer 10 2003 Neuchâtel / CH | 04 /
Grupp, Joachim Port-Roulant 12a 2003 Neuchâtel / CH | [1998/43] | Representative(s) | Ravenel, Thierry Gérard Louis, et al ICB Ingénieurs Conseils en Brevets SA Faubourg de l'Hôpital 3 2001 Neuchâtel / CH | [N/P] |
| Former [1998/43] | Ravenel, Thierry Gérard Louis, et al I C B, Ingénieurs Conseils en Brevets SA, 7, rue des Sors 2074 Marin / CH | Application number, filing date | 97106355.7 | 17.04.1997 | [1998/43] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0872759 | Date: | 21.10.1998 | Language: | FR | [1998/43] | Type: | B1 Patent specification | No.: | EP0872759 | Date: | 12.12.2001 | Language: | FR | [2001/50] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.10.1997 | Classification | IPC: | G02F1/137 | [1998/43] | CPC: |
G02F1/13718 (EP,KR,US);
G02F1/133509 (EP,KR,US);
G02F1/133514 (KR);
G02F1/13473 (KR)
| Designated contracting states | CH, DE, FR, GB, IT, LI, NL [1998/43] | Title | German: | Flüssigkristallanzeige-Vorrichtung für einen farbigen Bildschirm | [1998/43] | English: | Liquid crystal display device for a color display panel | [1998/43] | French: | Dispositif d'affichage à cristaux liquides destiné notamment à former un écran d'affichage d'images en couleur | [1998/43] | Examination procedure | 21.04.1999 | Examination requested [1999/24] | 28.02.2001 | Despatch of communication of intention to grant (Approval: No) | 28.02.2001 | Despatch of a communication from the examining division (Time limit: M04) | 13.03.2001 | Despatch of communication of intention to grant (Approval: later approval) | 13.03.2001 | Reply to a communication from the examining division | 12.04.2001 | Communication of intention to grant the patent | 23.07.2001 | Fee for grant paid | 23.07.2001 | Fee for publishing/printing paid | Opposition(s) | 13.09.2002 | No opposition filed within time limit [2002/49] | Fees paid | Renewal fee | 03.05.1999 | Renewal fee patent year 03 | 02.05.2000 | Renewal fee patent year 04 | 02.05.2001 | 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] US5493430 (LU MINHUA et al.) [A] 1,5,7 * column 3, line 27 - column 4, line 42 * | [AD] US5399390 (AKINS ROBERT B et al.) [AD] 1,8-10 * column 2, line 43 - column 5, line 30 * | [AD] G.P. CRAWFORD: "Liquid Crystal in Complex Geometries", TAYLOR & FRANCIS, 1996, XP002041494 [AD] 1,5 * Page 255-264. Chapitre 11.2: Reflective Cholesteric Display; page 257 * | [A] KLIMUSHEVA G V ET AL: "External factor influence on the optical activity of chiral liquid crystals", NONLINEAR OPTICS OF LIQUID AND PHOTOREFRACTIVE CRYSTALS, CRIMEA, UKRAINE, 23-30 OCT. 1995, vol. 2795, ISSN 0277-786X, PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 1996, SPIE-INT. SOC. OPT. ENG, USA, pages 50 - 55, XP002041493 [A] 1 * the whole document * DOI: http://dx.doi.org/10.1117/12.239230 |