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EP0414476
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EP About this file: EP0414476
| EP0414476 - Process for the preparation of photochromic spiropyran compounds [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 28.01.2000 Database last updated on 03.04.2025 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 / JP | [N/P] |
| Former [1991/09] | For all designated states MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 1006, Ohaza Kadoma Kadoma-shi, Osaka-fu, 571 / JP | Inventor(s) | 01 /
Hibino, Junichi 201, 46-2, Kuzuhanaka-machi Hirakata-shi, Osaka / JP | 02 /
Ando, Eiji 4-15-20, Fujigao Katano-shi, Osaka / JP | [1991/09] | 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 [1991/09] | Myerscough, Philip Boyd J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX / GB | Application number, filing date | 90309122.1 | 21.08.1990 | [1991/09] | Priority number, date | JP19890214493 | 21.08.1989 Original published format: JP 21449389 | [1991/09] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0414476 | Date: | 27.02.1991 | Language: | EN | [1991/09] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.12.1990 | Classification | IPC: | C07D491/107, G03C1/685, // (C07D491/107, 311:00, 209:00) | [1991/09] | CPC: |
C07D491/10 (EP,US);
C07D209/12 (EP,US);
G03C1/685 (EP,US)
| Designated contracting states | DE, FR, GB [1991/09] | Title | German: | Verfahren zur Herstellung photochromer Spiropyran-Verbindungen | [1991/09] | English: | Process for the preparation of photochromic spiropyran compounds | [1991/09] | French: | Procédé pour la préparation des composés photochromiques de spiropyranne | [1991/09] | Examination procedure | 01.09.1990 | Examination requested [1991/09] | 08.09.1993 | Despatch of a communication from the examining division (Time limit: M06) | 03.03.1994 | Reply to a communication from the examining division | 20.06.1994 | Despatch of communication that the application is refused, reason: substantive examination {1} | 05.08.1998 | Despatch of a communication from the examining division (Time limit: M04) | 07.12.1998 | Reply to a communication from the examining division | 29.03.1999 | Despatch of a communication from the examining division (Time limit: M04) | 30.07.1999 | Reply to a communication from the examining division | 10.08.1999 | Despatch of a communication from the examining division (Time limit: M06) | 19.01.2000 | Application withdrawn by applicant [2000/11] | Appeal following examination | 22.08.1994 | Appeal received No. T0870/94 | 31.10.1994 | Statement of grounds filed | 24.06.1998 | Result of appeal procedure: continuation of examination procedure | Fees paid | Renewal fee | 10.08.1992 | Renewal fee patent year 03 | 11.08.1993 | Renewal fee patent year 04 | 09.08.1994 | Renewal fee patent year 05 | 09.08.1995 | Renewal fee patent year 06 | 10.08.1996 | Renewal fee patent year 07 | 08.08.1997 | Renewal fee patent year 08 | 10.08.1998 | Renewal fee patent year 09 | 11.08.1999 | Renewal fee patent year 10 |
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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 | [X] - CHEMICAL ABSTRACTS, vol. 88, no. 15, 10 April 1978 Columbus, Ohio, USA E.R. ZAKHS et al.: "Bromination of spiropyrans and reduction of their nitro derivatives" & Khim. Geterotsikl. Soedin. 1977, no. 10, pages 1320-1326 | [X] - CHEMICAL ABSTRACTS, vol. 83, no. 17, 27 October 1975 Columbus, Ohio, USA N.B. SAMOILOVA: "5-Halospiro(1-benzopyran-2,2'-indoles)" & Otkrytija,Izobret., Prom.Obraztsy,Tovarnye Znaki 1975,vol.52,no.17, page 66 |