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EP0053455
European procedure
Extract from the Register of European Patents
EP About this file: EP0053455
| EP0053455 - Preparation of a fluorocarbon cation-exchange membrane and electrolysis process using the membrane [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 23.05.1986 Database last updated on 28.03.2026 | Most recent event Tooltip | 12.11.1999 | Lapse of the patent in a contracting state New state(s): LU | published on 29.12.1999 [1999/52] | 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 [1982/23] | For all designated states Asahi Kasei Kogyo Kabushiki Kaisha 2-6, Dojimahama 1-chome Kita-ku Osaka-shi Osaka 530 / JP | Inventor(s) | 01 /
Hane, Toshioki 101 Haitsu-Riyon 2-676, Kosugijinya-cho Nakahara-ku Kawasaki-shi Kanagawa-ken / JP | 02 /
Ohmura, Jukichi 2273-43, Kamariya-cho Kanagawa-ku Yokohama-shi Kanagawa-ken / JP | [1982/23] | Representative(s) | Blake, John Henry Francis, et al Brookes Batchellor 1 Boyne Park Tunbridge Wells Kent TN4 8EL / GB | [N/P] |
| Former [1982/23] | Blake, John Henry Francis, et al BROOKES AND MARTIN High Holborn House 52/54 High Holborn London WC1V 6SE / GB | Application number, filing date | 81305470.7 | 19.11.1981 | [1982/23] | Priority number, date | JP19800168554 | 29.11.1980 Original published format: JP 16855480 | [1982/23] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0053455 | Date: | 09.06.1982 | Language: | EN | [1982/23] | Type: | B1 Patent specification | No.: | EP0053455 | Date: | 24.07.1985 | Language: | EN | [1985/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.04.1982 | Classification | IPC: | C08J5/22, C08F8/06, C25B13/08 | [1982/23] | CPC: |
C08J5/225 (EP,US);
C08F8/04 (EP,US);
C08J2327/12 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1982/23] | Title | German: | Herstellung einer Kationenaustauschermembrane aus fluorierten Polymeren und diese Membrane verwendendes Elektrolyseverfahren | [1982/23] | English: | Preparation of a fluorocarbon cation-exchange membrane and electrolysis process using the membrane | [1982/23] | French: | Fabrication d'une membrane échangeuse de cations en polymère fluoré et procédé d'électrolyse utilisant cette membrane | [1982/23] | Examination procedure | 27.11.1981 | Examination requested [1982/23] | 21.10.1982 | Despatch of a communication from the examining division (Time limit: M04) | 25.02.1983 | Reply to a communication from the examining division | 01.09.1983 | Despatch of a communication from the examining division (Time limit: M06) | 03.02.1984 | Reply to a communication from the examining division | 09.10.1984 | Despatch of communication of intention to grant (Approval: ) | 10.01.1985 | Communication of intention to grant the patent | 10.04.1985 | Fee for grant paid | 10.04.1985 | Fee for publishing/printing paid | Opposition(s) | 25.04.1986 | No opposition filed within time limit [1986/28] | Fees paid | Renewal fee | 13.07.1983 | Renewal fee patent year 03 | 08.05.1984 | Renewal fee patent year 04 |
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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. | Lapses during opposition Tooltip | AT | 24.07.1985 | BE | 24.07.1985 | CH | 24.07.1985 | LI | 24.07.1985 | SE | 30.07.1985 | LU | 30.11.1985 | [1999/52] |
| Former [1989/19] | AT | 24.07.1985 | |
| BE | 24.07.1985 | ||
| CH | 24.07.1985 | ||
| LI | 24.07.1985 | ||
| SE | 30.07.1985 | ||
| Former [1988/13] | AT | 24.07.1985 | |
| BE | 24.07.1985 | ||
| SE | 30.07.1985 | ||
| Former [1988/04] | AT | 24.07.1985 | |
| BE | 24.07.1985 | ||
| Former [1986/47] | AT | 24.07.1985 | |