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EP0308270
European procedure
Extract from the Register of European Patents
EP About this file: EP0308270
| EP0308270 - Processes for preparation of polyimide-isoindoquinazoline dione and precursor thereof [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 13.10.1994 Database last updated on 09.09.2024 | Most recent event Tooltip | 13.10.1994 | No opposition filed within time limit | published on 30.11.1994 [1994/48] | Applicant(s) | For all designated states Hitachi Chemical Co., Ltd. 1-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo 160 / JP | [N/P] |
| Former [1990/33] | For all designated states Hitachi Chemical Co., Ltd. 1-1, Nishishinjuku 2-chome Shinjuku-ku, Tokyo 160 / JP | ||
| Former [1989/12] | For all designated states Hitachi Chemical Co., Ltd. 1-1, Nishishinjuku 2-chome Shinjuku-ku, Tokyo 160 / JP | Inventor(s) | 01 /
Yoshida, Masatoshi 15-11 Ekiminamicho-1-chome Oyama-shi / JP | 02 /
Shibata, Katsuji 422-8 Okushi Shimotsuma-shi / JP | 03 /
Kojima, Mitsumasa 16-8-2 Takasuzucho-1-chome Hitachi-shi / JP | 04 /
Satou, Hidetaka 16-14-1 Takasuzucho-1-chome Hitachi-shi / JP | 05 /
Kato, Toshihiko 3005, Oda Tsukuba-shi / JP | 06 /
Miyadera, Yasuo Hitachi Kasei Matsushiro Hausu 501 4-3, Matsushiro-3-chome Tsukuba-shi / JP | 07 /
Yusa, Masami 511-1 Oaza Ichinobe Shimodate-shi / JP | [1989/27] |
| Former [1989/12] | 01 /
Yoshida, Masatoshi 15-11 Ekiminamicho-1-chome Oyama-shi / JP | ||
| 02 /
Shibata, Katsui 422-8 Okushi Shimotsuma-shi / JP | |||
| 03 /
Kojima, Mitsumasa 16-8-2 Takasuzucho-1-chome Hitachi-shi / JP | |||
| 04 /
Satou, Hidetaka 16-14-1 Takasuzucho-1-chome Hitachi-shi / JP | |||
| 05 /
Kato, Toshihiko 3005, Oda Tsukuba-shi / JP | |||
| 06 /
Miyadera, Yasuo Hitachi Kasei Matsushiro Hausu 501 4-3, Matsushiro-3-chome Tsukuba-shi / JP | |||
| 07 /
Yusa, Masami 511-1 Oaza Ichinobe Shimodate-shi / JP | Representative(s) | Cresswell, Thomas Anthony, et al J.A. Kemp & Co. 14 South Square Gray's Inn London WC1R 5JJ / GB | [N/P] |
| Former [1989/12] | Cresswell, Thomas Anthony, et al J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX / GB | Application number, filing date | 88308643.1 | 19.09.1988 | [1989/12] | Priority number, date | JP19870233066 | 17.09.1987 Original published format: JP 23306687 | [1989/12] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0308270 | Date: | 22.03.1989 | Language: | EN | [1989/12] | Type: | A3 Search report | No.: | EP0308270 | Date: | 10.10.1990 | Language: | EN | [1990/41] | Type: | B1 Patent specification | No.: | EP0308270 | Date: | 08.12.1993 | Language: | EN | [1993/49] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 22.08.1990 | Classification | IPC: | C08G73/10, C08G73/06 | [1989/12] | CPC: |
C08G73/06 (EP,US);
C07D407/12 (KR);
C08G73/00 (KR);
C08G73/0677 (EP,US);
C08G73/1007 (EP,US);
C08G73/1042 (EP,US);
| Designated contracting states | DE, FR, GB [1989/12] | Title | German: | Verfahren zur Herstellung von Polyimid-isoindochinazolindion und ihren Vorläufern | [1989/12] | English: | Processes for preparation of polyimide-isoindoquinazoline dione and precursor thereof | [1989/12] | French: | Procédé pour la préparation de polyimide-isoindoquinazoline-dione et leurs précurseurs | [1989/12] | Examination procedure | 10.12.1990 | Examination requested [1991/06] | 20.05.1992 | Despatch of a communication from the examining division (Time limit: M06) | 30.10.1992 | Reply to a communication from the examining division | 17.02.1993 | Despatch of communication of intention to grant (Approval: Yes) | 14.06.1993 | Communication of intention to grant the patent | 02.09.1993 | Fee for grant paid | 02.09.1993 | Fee for publishing/printing paid | Opposition(s) | 09.09.1994 | No opposition filed within time limit [1994/48] | Fees paid | Renewal fee | 21.09.1990 | Renewal fee patent year 03 | 09.09.1991 | Renewal fee patent year 04 | 15.09.1992 | Renewal fee patent year 05 | 16.09.1993 | Renewal fee patent year 06 |
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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 | [Y]DE3131907 (HITACHI CHEMICAL CO LTD [JP]); | [Y]US3435002 (HOLUB FRED F) | [A] - PATENT ABSTRACTS OF JAPAN | Examination | JP594623 | - PATENT ABSTRACTS OF JAPAN, vol. 8, no. 85 (C-219)(1522), 18 April 1984 & JP-A-594623, & JP594623 A 19840418 |