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EP0571278
European procedure
Extract from the Register of European Patents
EP About this file: EP0571278
| EP0571278 - Antiferroelectric liquid crystal compound and process for producing the same [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.05.1997 Database last updated on 22.08.2024 | Most recent event Tooltip | 02.05.1997 | No opposition filed within time limit | published on 18.06.1997 [1997/25] | Applicant(s) | For all designated states Showa Shell Sekiyu Kabushiki Kaisha 2-5, Kasumigaseki 3-chome Chiyoda-ku Tokyo / JP | [1993/47] | Inventor(s) | 01 /
Suzuki, Yoshiichi, c/o SHOWA SHELL SEKIYU K.K. 2-5, Kasumigaseki 3-chome Chiyoda-ku, Tokyo 100 / JP | 02 /
Mogamiya, Hiroyuki, c/o SHOWA SHELL SEKIYU K.K. 2-5, Kasumigaseki 3-chome Chiyoda-ku, Tokyo 100 / JP | 03 /
Tanaka, Koichi, c/o KOBE NATURAL PRODUCT AND CHEM. CO., LTD., 10-6, Kamishinchi 3-chome Nishi-ku, Kobe-shi, Hyogo 674 / JP | 04 /
Takagi, Yoshihiro, c/o KOBE NATURAL PRODUCT AND CHEM. CO., LTD., 10-6, Kamishinchi 3-chome Nishi-ku, Kobe-shi, Hyogo 674 / JP | 05 /
Hirose, Katutoshi, c/o KOBE NATURAL PRODUCT AND CHEM. CO., LTD., 10-6, Kamishinchi 3-chome Nishi-ku, Kobe-shi, Hyogo 674 / JP | [1993/47] | Representative(s) | Bourgognon, Jean-Marie, et al Cabinet Flechner 22, Avenue de Friedland 75008 Paris / FR | [N/P] |
| Former [1993/47] | Bourgognon, Jean-Marie, et al Cabinet Flechner 22, Avenue de Friedland F-75008 Paris / FR | Application number, filing date | 93401283.2 | 18.05.1993 | [1993/47] | Priority number, date | JP19920154388 | 21.05.1992 Original published format: JP 15438892 | [1993/47] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0571278 | Date: | 24.11.1993 | Language: | EN | [1993/47] | Type: | B1 Patent specification | No.: | EP0571278 | Date: | 26.06.1996 | Language: | EN | [1996/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 31.08.1993 | Classification | IPC: | C09K19/28, C09K19/32, C07C327/32 | [1993/47] | CPC: |
C09K19/0266 (EP,US);
C07C327/32 (EP,US);
C09K19/28 (EP,US);
C09K19/322 (EP,US)
| Designated contracting states | DE, FR, GB [1993/47] | Title | German: | Antiferroelektrische Flüssigkristallverbindung sowie Verfahren zur deren Herstellung | [1993/47] | English: | Antiferroelectric liquid crystal compound and process for producing the same | [1993/47] | French: | Composé liquide cristallin antiferroélectrique et son procédé de préparation | [1993/47] | Examination procedure | 05.01.1994 | Examination requested [1994/10] | 25.08.1995 | Despatch of communication of intention to grant (Approval: Yes) | 30.10.1995 | Communication of intention to grant the patent | 15.11.1995 | Fee for grant paid | 15.11.1995 | Fee for publishing/printing paid | Opposition(s) | 27.03.1997 | No opposition filed within time limit [1997/25] | Fees paid | Renewal fee | 15.03.1995 | Renewal fee patent year 03 | 13.03.1996 | Renewal fee patent year 04 |
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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 | [AD]EP0390759 (IBM [US]); | [A]EP0422996 (SHOWA SHELL SEKIYU [JP]) | [A] - MOLECULAR CRYSTALS AND LIQUID CRYSTALS, LETTERS - SERIES vol. 4, no. 3-4, 1987, pages 93 - 98 N.H. TINH ET AL 'chiral sc* phase in some thiobenzoate series' |