-
EP0669310
European procedure
Extract from the Register of European Patents
EP About this file: EP0669310
| EP0669310 - Processes for producing tetrafluorophthalic anhydride [Right-click to bookmark this link] | |||
| Former [1995/35] | Processes for producing tetrafluorophtahlic anhydride and fluorobenzoic acids | ||
| [1998/52] | Status | No opposition filed within time limit Status updated on 29.10.1999 Database last updated on 03.09.2024 | Most recent event Tooltip | 29.10.1999 | No opposition filed within time limit | published on 15.12.1999 [1999/50] | Applicant(s) | For all designated states ASAHI GLASS COMPANY LTD. 1-2, Marunouchi 2-chome Chiyoda-ku Tokyo 100 / JP | [N/P] |
| Former [1995/35] | For all designated states ASAHI GLASS COMPANY LTD. 1-2, Marunouchi 2-chome Chiyoda-ku Tokyo 100 / JP | Inventor(s) | 01 /
Seki, Ryuji, Asahi Glass Company Ltd. Chuo Kenkyusho, 1150, Hazawa-cho, Kanagawa-ku Yokohama-shi, Kanagawa-ken / JP | 02 /
Sugimoto, Koji, Asahi Glass Company Ltd. Chuo Kenkyusho, 1150, Hazawa-cho, Kanagawa-ku Yokohama-shi, Kanagawa-ken / JP | 03 /
Kumai, Seisaku, Asahi Glass Company Ltd. Chuo Kenkyusho, 1150, Hazawa-cho, Kanagawa-ku Yokohama-shi, Kanagawa-ken / JP | [1995/35] | Representative(s) | Wächtershäuser, Günter Wächtershäuser & Hartz Patentanwälte Ottostrasse 4 80333 München / DE | [N/P] |
| Former [1995/35] | Wächtershäuser, Günter, Prof. Dr. Patentanwalt, Tal 29 D-80331 München / DE | Application number, filing date | 95102026.2 | 14.02.1995 | [1995/35] | Priority number, date | JP19940025528 | 23.02.1994 Original published format: JP 2552894 | JP19940026897 | 24.02.1994 Original published format: JP 2689794 | JP19940034681 | 04.03.1994 Original published format: JP 3468194 | [1995/35] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0669310 | Date: | 30.08.1995 | Language: | EN | [1995/35] | Type: | B1 Patent specification | No.: | EP0669310 | Date: | 23.12.1998 | Language: | EN | [1998/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.06.1995 | Classification | IPC: | C07C51/54, C07D307/88 | [1998/52] | CPC: |
C07D307/89 (EP,US);
C07C63/10 (KR);
C07C51/09 (EP,US);
C07C51/38 (EP,US);
C07C51/54 (EP,US);
C07C51/60 (EP,US);
C07C51/62 (EP,US);
C07C67/08 (EP,US);
C07C67/31 (EP,US);
| C-Set: |
C07C51/09, C07C63/68 (EP,US);
C07C51/09, C07C65/21 (US,EP);
C07C51/38, C07C63/70 (US,EP);
C07C51/38, C07C65/21 (US,EP);
C07C51/54, C07C63/15 (US,EP);
C07C51/60, C07C63/70 (EP,US);
C07C51/62, C07C63/70 (EP,US);
C07C67/08, C07C69/76 (US,EP); |
| Former IPC [1995/35] | C07C63/68, C07C51/56, C07D307/88, C07C63/70, C07C51/38 | Designated contracting states | DE, ES, FR, GB, IT [1995/35] | Title | German: | Verfahren zur Herstellung von Tetrafluorphtalsäureanhydrid | [1998/52] | English: | Processes for producing tetrafluorophthalic anhydride | [1998/52] | French: | Procédé de préparation d'anhydride tétrafluorophtalique | [1998/52] |
| Former [1995/35] | Verfahren zur Herstellung von Tetrafluorphtalsäureanhydrid und Fluorbenzoesäuren | ||
| Former [1995/35] | Processes for producing tetrafluorophtahlic anhydride and fluorobenzoic acids | ||
| Former [1995/35] | Procédé de préparation d'anhydride tétrafluorophtalique et des acides fluorobenzoiques | Examination procedure | 12.02.1996 | Examination requested [1996/15] | 11.03.1997 | Despatch of a communication from the examining division (Time limit: M06) | 19.09.1997 | Reply to a communication from the examining division | 12.02.1998 | Despatch of communication of intention to grant (Approval: Yes) | 16.06.1998 | Communication of intention to grant the patent | 02.09.1998 | Fee for grant paid | 02.09.1998 | Fee for publishing/printing paid | Divisional application(s) | EP98109043.4 / EP0877011 | EP98109044.2 / EP0866050 | Opposition(s) | 24.09.1999 | No opposition filed within time limit [1999/50] | Fees paid | Renewal fee | 28.02.1997 | Renewal fee patent year 03 | 27.02.1998 | Renewal fee patent year 04 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| 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]JPS63295529 ; | [X]US2439237 (CASS WILLIAM E) [X] 7 * column 2, line 26 - column 3, line 32 *; | [X]EP0218111 (WARNER LAMBERT CO [US]) [X] 1-4,7 * THE WHOLE DOCUMENT. * | [A] - PATENT ABSTRACTS OF JAPAN, (19890327), vol. 13, no. 124, Database accession no. (C - 580)<3472>, & JP63295529 A 19881201 (MITSUBISHI GAS CHEM.CO.INC.) [A] 7 * abstract * | Examination | EP0667334 | - J. March, "Advanced Organic Chemistry", John Wiley & Sons, 3rd. ed., p. 347 |