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EP0273092
European procedure
Extract from the Register of European Patents
EP About this file: EP0273092
| EP0273092 - A random copolymer containing hexagonal imide units,a process for producing the same,and an optical disc substrate made of the random copolymer [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.06.1994 Database last updated on 24.07.2024 | Most recent event Tooltip | 02.06.1994 | No opposition filed within time limit | published on 20.07.1994 [1994/29] | Applicant(s) | For all designated states Asahi Kasei Kabushiki Kaisha 2-6, Dojimahama 1-chome Kita-ku Osaka-shi Osaka 530-8205 / JP | [N/P] |
| Former [1988/27] | For all designated states Asahi Kasei Kogyo Kabushiki Kaisha 2-6, Dojimahama 1-chome Kita-ku Osaka-shi Osaka 530 / JP | Inventor(s) | 01 /
Wada, Akihiro 492-4 Yanokuchi Inagi-shi Tokyo / JP | 02 /
Kakuta, Rin-ichi 35-16 Hakusan 4-chome Bunkyo-ku Tokyo / JP | [1988/27] | Representative(s) | Strehl Schübel-Hopf & Partner Maximilianstrasse 54 80538 München / DE | [N/P] |
| Former [1988/27] | Strehl Schübel-Hopf Groening & Partner Maximilianstrasse 54 D-80538 München / DE | Application number, filing date | 87102979.9 | 03.03.1987 | [1988/27] | Priority number, date | JP19860308042 | 25.12.1986 Original published format: JP 30804286 | JP19860308043 | 25.12.1986 Original published format: JP 30804386 | [1988/27] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0273092 | Date: | 06.07.1988 | Language: | EN | [1988/27] | Type: | A3 Search report | No.: | EP0273092 | Date: | 25.04.1990 | Language: | EN | [1990/17] | Type: | B1 Patent specification | No.: | EP0273092 | Date: | 28.07.1993 | Language: | EN | [1993/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.03.1990 | Classification | IPC: | C08F8/30, G11B7/24 | [1988/27] | CPC: |
C08F8/48 (EP,US);
C08F2800/20 (EP,US)
| C-Set: |
C08F8/48, C08F8/30, C08F220/14 (EP,US)
| Designated contracting states | DE, FR, GB, NL [1993/02] |
| Former [1988/27] | AT, CH, DE, FR, GB, IT, LI, NL | Title | German: | Hexagonale Imideinheiten enthaltendes Random-Copolymer, Verfahren zu dessen Herstellung und Substrat einer optischen Platte, hergestellt aus diesem Random-Copolymer | [1988/27] | English: | A random copolymer containing hexagonal imide units,a process for producing the same,and an optical disc substrate made of the random copolymer | [1988/27] | French: | Copolymère random contenant des unités imide hexagonales, son procédé de préparation et un substrat de disque optique fabriqué avec ce copolymère random | [1988/27] | Examination procedure | 20.08.1990 | Examination requested [1990/45] | 23.10.1991 | Despatch of a communication from the examining division (Time limit: M04) | 02.03.1992 | Reply to a communication from the examining division | 14.07.1992 | Despatch of communication of intention to grant (Approval: No) | 13.01.1993 | Despatch of communication of intention to grant (Approval: later approval) | 10.02.1993 | Communication of intention to grant the patent | 19.05.1993 | Fee for grant paid | 19.05.1993 | Fee for publishing/printing paid | Opposition(s) | 29.04.1994 | No opposition filed within time limit [1994/29] | Fees paid | Renewal fee | 31.03.1989 | Renewal fee patent year 03 | 22.03.1990 | Renewal fee patent year 04 | 19.12.1990 | Renewal fee patent year 05 | 19.03.1992 | Renewal fee patent year 06 | 22.03.1993 | Renewal fee patent year 07 |
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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 | [A]JP61047707 ; | [A]JP61043604 ; | [AP]JP62004704 | [A] - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 208, 22nd July 1986, page C-361; & JP-A-61 047 707 (ASAHI), & JP61047707 A 00000000 | [A] - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 203, 16th July 1986, page C-360; & JP-A-61 043 604 (ASAHI), & JP61043604 A 00000000 | [AP] - PATENT ABSTRACTS OF JAPAN, vol. 11, no. 176, 5th June 1987, page C-426; & JP-A-62 004 704 (ASAHI), & JP62004704 A 00000000 |