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EP0484622
European procedure
Extract from the Register of European Patents
EP About this file: EP0484622
| EP0484622 - Electrolytic solution for Karl Fischer's coulometric titration and method for measuring water content using same [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 31.10.1997 Database last updated on 18.10.2024 | Most recent event Tooltip | 31.10.1997 | No opposition filed within time limit | published on 17.12.1997 [1997/51] | Applicant(s) | For all designated states MITSUBISHI CHEMICAL CORPORATION 5-2, Marunouchi 2-chome Chiyoda-ku Tokyo / JP | [N/P] |
| Former [1995/15] | For all designated states Mitsubishi Chemical Corporation 5-2, Marunouchi 2-chome Chiyoda-ku Tokyo / JP | ||
| Former [1992/20] | For all designated states MITSUBISHI KASEI CORPORATION 5-2, Marunouchi 2-chome Chiyoda-ku Tokyo 100 / JP | Inventor(s) | 01 /
Kato, Hiromasa 35-1, Hijirigaoka 2-chome Tama-shi, Tokyo / JP | 02 /
Fujimoto, Yuka 1766, Shimokuzawa Sagamihara-shi, Kanagawa / JP | 03 /
Nozawa, Akiyoshi 29-18, Dagamidai 7-chome Sagamihara-shi, Kanagawa / JP | 04 /
Kuwata, Shinichi 2-3, Sumiyoshidai, Midori-ku Yokohama-shi, Kanagawa / JP | [1992/20] | Representative(s) | Vossius & Partner Patentanwälte Rechtsanwälte mbB Siebertstrasse 3 81675 München / DE | [N/P] |
| Former [1992/20] | VOSSIUS & PARTNER Postfach 86 07 67 D-81634 München / DE | Application number, filing date | 91108462.2 | 24.05.1991 | [1992/20] | Priority number, date | JP19900300859 | 06.11.1990 Original published format: JP 30085990 | [1992/20] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0484622 | Date: | 13.05.1992 | Language: | EN | [1992/20] | Type: | A3 Search report | No.: | EP0484622 | Date: | 24.02.1993 | Language: | EN | [1993/08] | Type: | B1 Patent specification | No.: | EP0484622 | Date: | 27.12.1996 | Language: | EN | [1996/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.01.1993 | Classification | IPC: | G01N31/16 | [1992/20] | CPC: |
G01N31/168 (EP,US)
| Designated contracting states | DE, FR, GB [1992/20] | Title | German: | Eine elektrolytische Lösung für Karl-Fischer-coulometrische Titration und Verfahren zur Messung des Wassergehalts unter Verwendung dieser Lösung | [1992/20] | English: | Electrolytic solution for Karl Fischer's coulometric titration and method for measuring water content using same | [1992/20] | French: | Une solution électrolytique pour le titrage coulométrique de Karl Fischer et méthode pour mesurer la teneur en eau utilisant la-même | [1992/20] | Examination procedure | 28.04.1993 | Examination requested [1993/25] | 02.02.1996 | Despatch of communication of intention to grant (Approval: No) | 21.06.1996 | Despatch of communication of intention to grant (Approval: later approval) | 27.06.1996 | Communication of intention to grant the patent | 04.10.1996 | Fee for grant paid | 04.10.1996 | Fee for publishing/printing paid | Opposition(s) | 30.09.1997 | No opposition filed within time limit [1997/51] | Fees paid | Renewal fee | 28.05.1993 | Renewal fee patent year 03 | 30.05.1994 | Renewal fee patent year 04 | 28.04.1995 | Renewal fee patent year 05 | 30.05.1996 | 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 | [YD]DE3447455 (MITSUBISHI CHEM IND [JP]); | [Y]EP0036487 (MERCK PATENT GMBH [DE]); | [AD]EP0035066 (RIEDEL DE HAEN AG [DE]) | [Y] - CHEMICAL ABSTRACTS, vol. 111, no. 22, 27 November 1989, Columbus, Ohio, US; abstract no. 208249f, W. YUAN 'PREPARATION OF TWO KINDS OF PYRIDINE- FREE KARL FISCHER REAGENTS' page 926 ; | [AP] - ANALYTICAL CHEMISTRY vol. 63, no. 10, 15 May 1991, COLUMBUS US pages 557 - 566 S.K. MACLEOD 'MOISTURE DETERMINATION USING KARL FISCHER TITRATIONS' | Examination | - CHEMICAL ABSTRACTS, vol. 111, no. 22, 27 November 1989, Columbus, Ohio, US; abstract no. 208249f, W.YUAN 'PREPARATION OF TWO KINDS OF PYRIDINE-FREE KARL FISCHER REAGENTS' page 926; & HUAXUE SHIJI vol.11, no. 1, 1989, pages 54-55 |