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EP0351112
European procedure
Extract from the Register of European Patents
EP About this file: EP0351112
| EP0351112 - Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound [Right-click to bookmark this link] | |||
| Former [1990/03] | Novel photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound | ||
| [1994/39] | Status | No opposition filed within time limit Status updated on 29.07.1995 Database last updated on 14.03.2026 | Most recent event Tooltip | 29.07.1995 | No opposition filed within time limit | published on 20.09.1995 [1995/38] | Applicant(s) | For all designated states Tokuyama Corporation 1-1, Mikage-cho Tokuyama-shi, Yamaguchi-ken / JP | [N/P] |
| Former [1994/36] | For all designated states TOKUYAMA CORPORATION 1-1, Mikage-cho Tokuyama-shi Yamaguchi-ken / JP | ||
| Former [1990/03] | For all designated states TOKUYAMA SODA KABUSHIKI KAISHA 1-1 Mikage-cho Tokuyama-shi Yamaguchi-ken / JP | Inventor(s) | 01 /
Tanaka, Takashi 4488, Tonda Shinnanyo-shi Yamaguchi-ken / JP | 02 /
Tanaka, Kenji 8229-2, Oaza Tokuyama Tokuyama-shi Yamaguchi-ken / JP | 03 /
Imura, Satoshi 7-3, Hanabata-cho Tokuyama-shi Yamaguchi-ken / JP | 04 /
Kida, Yasuji 61-36, Suetakeshimo Kudamatsu-shi Yamaguchi-ken / JP | [1990/03] | Representative(s) | Cresswell, Thomas Anthony, et al J.A. Kemp & Co. 14 South Square Gray's Inn London WC1R 5JJ / GB | [N/P] |
| Former [1995/31] | Cresswell, Thomas Anthony, et al J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX / GB | ||
| Former [1990/03] | Myerscough, Philip Boyd J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX / GB | Application number, filing date | 89306672.0 | 30.06.1989 | [1990/03] | Priority number, date | JP19880162663 | 01.07.1988 Original published format: JP 16266388 | [1990/03] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0351112 | Date: | 17.01.1990 | Language: | EN | [1990/03] | Type: | A3 Search report | No.: | EP0351112 | Date: | 17.07.1991 | Language: | EN | [1991/29] | Type: | B1 Patent specification | No.: | EP0351112 | Date: | 28.09.1994 | Language: | EN | [1994/39] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 29.05.1991 | Classification | IPC: | C07D495/10, C07D493/10, C07D491/107, C07D307/93, C07D307/77, C07D487/10, G03C1/73, // (C07D495/10, 333:00, 307:00),(C07D495/10, 333:00, 209:00),(C07D493/10, 307:00, 307:00),(C07D491/107, 307:00, 209:00),(C07D487/10, 209:00, 209:00) | [1990/03] | CPC: |
C07D307/92 (EP,US);
C07D307/93 (EP,US);
C07D487/10 (EP,US);
C07D491/10 (EP,US);
C07D493/10 (EP,US);
C07D495/10 (EP,US);
C09K9/02 (EP,US)
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| Designated contracting states | DE, FR, GB, IT [1990/03] | Title | German: | Photochromische Verbindung, Verfahren zu ihrer Herstellung, ihre Verwendung und diese enthaltende photochromische Zubereitung | [1990/03] | English: | Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound | [1994/39] | French: | Composé photochromique, procédé de préparation, son application et composition photochromique le contenant | [1990/03] |
| Former [1990/03] | Novel photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound | Examination procedure | 07.10.1991 | Examination requested [1991/49] | 08.06.1993 | Despatch of a communication from the examining division (Time limit: M04) | 27.09.1993 | Reply to a communication from the examining division | 13.12.1993 | Despatch of communication of intention to grant (Approval: Yes) | 09.02.1994 | Communication of intention to grant the patent | 10.05.1994 | Fee for grant paid | 10.05.1994 | Fee for publishing/printing paid | Opposition(s) | 29.06.1995 | No opposition filed within time limit [1995/38] | Fees paid | Renewal fee | 17.06.1991 | Renewal fee patent year 03 | 09.06.1992 | Renewal fee patent year 04 | 14.06.1993 | Renewal fee patent year 05 | 11.06.1994 | Renewal fee patent year 06 |
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