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EP0241818
European procedure
Extract from the Register of European Patents
EP About this file: EP0241818
| EP0241818 - pH buffering method [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 30.11.1991 Database last updated on 24.03.2026 | Most recent event Tooltip | 30.11.1991 | No opposition filed within time limit | published on 22.01.1992 [1992/04] | Applicant(s) | For all designated states KAO CORPORATION 1-14-10, Nihonbashi Kayaba-cho Chuo-ku Tokyo / JP | [N/P] |
| Former [1987/43] | For all designated states Kao Corporation 1-14-10, Nihonbashi Kayaba-cho Chuo-ku Tokyo / JP | Inventor(s) | 01 /
Kurosaki, Tomihiro 1465, Tannowa Misaki-cho Sennan-gun Osaka-fu / JP | 02 /
Imamura, Takashi 1450, Nishihama Wakayama-shi Wakayama-ken / JP | [1987/43] | Representative(s) | Wächtershäuser, Günter Wächtershäuser & Hartz Patentanwälte Ottostrasse 4 80333 München / DE | [N/P] |
| Former [1987/43] | Wächtershäuser, Günter, Prof. Dr. Patentanwalt, Tal 29 D-80331 München / DE | Application number, filing date | 87104907.8 | 02.04.1987 | [1987/43] | Priority number, date | JP19860086787 | 15.04.1986 Original published format: JP 8678786 | [1987/43] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0241818 | Date: | 21.10.1987 | Language: | EN | [1987/43] | Type: | A3 Search report | No.: | EP0241818 | Date: | 30.11.1988 | Language: | EN | [1988/48] | Type: | B1 Patent specification | No.: | EP0241818 | Date: | 30.01.1991 | Language: | EN | [1991/05] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 11.10.1988 | Classification | IPC: | A61K47/00 | [1987/43] | CPC: |
A61K31/66 (EP);
A61K47/24 (EP);
A61K47/26 (EP)
| Designated contracting states | CH, DE, ES, FR, GB, IT, LI [1987/43] | Title | German: | Verfahren zur pH-Pufferung | [1987/43] | English: | pH buffering method | [1987/43] | French: | Procédé pour maintenir constant le pH | [1987/43] | Examination procedure | 14.03.1989 | Examination requested [1989/20] | 15.06.1990 | Despatch of communication of intention to grant (Approval: Yes) | 01.08.1990 | Communication of intention to grant the patent | 23.10.1990 | Fee for grant paid | 23.10.1990 | Fee for publishing/printing paid | Opposition(s) | 31.10.1991 | No opposition filed within time limit [1992/04] | Fees paid | Renewal fee | 28.04.1989 | Renewal fee patent year 03 | 27.02.1990 | Renewal fee patent year 04 |
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