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EP0094587
European procedure
Extract from the Register of European Patents
EP About this file: EP0094587
| EP0094587 - Improved electrolytic cation exchange membrane [Right-click to bookmark this link] | Status | Patent maintained as amended Status updated on 19.04.1991 Database last updated on 28.03.2026 | Most recent event Tooltip | 19.04.1991 | Patent maintained (B2 publication) | published on 05.06.1991 [1991/23] | Applicant(s) | For all designated states ASAHI GLASS COMPANY LTD. No. 1-2, Marunouchi 2-chome Chiyoda-ku, Tokyo / JP | [1983/47] | Inventor(s) | 01 /
Miyake, Haruhisa 885-177, Higashi Hongoh-cho Midori-ku Yokohama-shi Kanagawa-ken / JP | 02 /
Suhara, Manabu No. 1742, Kumizawa-cho Totsuka-ku Yokohama-shi Kanagawa-ken / JP | 03 /
Mori, Hiroshi 2-59-1, Tsurugamine Asahi-ku Yokohama-shi Kanagawa-ken / JP | 04 /
Saito, Yoshihiko No. 543, Sanmaicho Kanagawa-ku Yokohama-shi Kanagawa-ken / JP | [1983/47] | Representative(s) | Wächtershäuser, Günter Wächtershäuser & Hartz Patentanwälte Ottostrasse 4 80333 München / DE | [N/P] |
| Former [1983/47] | Wächtershäuser, Günter, Prof. Dr. Patentanwalt, Tal 29 D-80331 München / DE | Application number, filing date | 83104562.0 | 09.05.1983 | [1983/47] | Priority number, date | JP19820082386 | 18.05.1982 Original published format: JP 8238682 | [1983/47] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0094587 | Date: | 23.11.1983 | Language: | EN | [1983/47] | Type: | B1 Patent specification | No.: | EP0094587 | Date: | 11.11.1987 | Language: | EN | [1987/46] | Type: | B2 New European patent specification | No.: | EP0094587 | Date: | 05.06.1991 | Language: | EN | [1991/23] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 22.08.1983 | Classification | IPC: | C25B13/08, C25B1/10, C25B1/46, B01J47/12, C08J5/22 | [1983/47] | CPC: |
C08J5/2281 (EP,US);
C08J2327/18 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL [1984/07] |
| Former [1983/47] | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE | Title | German: | Kationenaustauschermembran für Elektrolysezwecke | [1983/47] | English: | Improved electrolytic cation exchange membrane | [1983/47] | French: | Membrane échangeuse de cations pour l'électrolyse | [1983/47] | Examination procedure | 02.09.1983 | Despatch of communication of loss of particular rights: designated state(s) AT, BE, CH, LU, SE | 13.11.1983 | Loss of particular rights, legal effect: designated state(s) | 08.05.1984 | Examination requested [1984/29] | 06.05.1985 | Despatch of a communication from the examining division (Time limit: M06) | 14.11.1985 | Reply to a communication from the examining division | 22.04.1986 | Despatch of a communication from the examining division (Time limit: M06) | 13.08.1986 | Reply to a communication from the examining division | 30.01.1987 | Despatch of communication of intention to grant (Approval: ) | 12.05.1987 | Communication of intention to grant the patent | 14.07.1987 | Fee for grant paid | 14.07.1987 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
18.08.1988
12.09.1988
ADMISSIBLE HOECHST AKTIENGESELLSCHAFT Werk Gendorf Patentbüro D-84504 Burgkirchen / DE | [1988/40] |
| Former [1988/39] | |||
| Opponent(s) | 01
02.08.1988
ADMISSIBLE HOECHST AKTIENGESELLSCHAFT Werk Gendorf Patentbüro D-84504 Burgkirchen / DE | 14.09.1988 | Invitation to proprietor to file observations on the notice of opposition | 24.05.1989 | Reply of patent proprietor to notice(s) of opposition | 01.06.1989 | Communication of observations of patent proprietor (Time limit: M04) | 18.11.1989 | Reply of parties involved to observations of patent proprietor | 05.06.1990 | Despatch of interlocutory decision in opposition | 15.06.1990 | Legal effect of interlocutory decision in opposition | 14.12.1990 | Despatch of communication that the patent will be maintained as amended | 13.03.1991 | Fee for printing new specification paid | Fees paid | Renewal fee | 30.04.1985 | Renewal fee patent year 03 | 26.05.1986 | Renewal fee patent year 04 | 22.05.1987 | Renewal fee patent year 05 | Penalty fee | Penalty fee Rule 85a EPC 1973 | 09.06.1983 | AT M02 Not yet paid | 09.06.1983 | BE M02 Not yet paid | 09.06.1983 | CH M02 Not yet paid | 09.06.1983 | LU M02 Not yet paid | 09.06.1983 | SE M02 Not yet paid |
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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] GB1401290 (PPG INDUSTRIES INC et al.) [A] | [AD] GB2064586 (ASAHI GLASS CO LTD et al.) [AD] | [A] EP0028943 (ASAHI GLASS CO LTD et al.) [A] | [A] FR2457880 (ASAHI CHEMICAL IND et al.) [A] | [A] US4255523 (UKIHASHI HIROSHI et al.) [A] | by applicant | US4151053 | US4224121 | GB1401290 |