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EP0426177
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EP About this file: EP0426177
| EP0426177 - Process for preparing quaternary ammonium compounds [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 20.05.1992 Database last updated on 13.11.2024 | Most recent event Tooltip | 25.07.2008 | Change - representative | published on 27.08.2008 [2008/35] | Applicant(s) | For all designated states SHEREX CHEMICAL COMPANY, INC. 5777 Frantz Road Dublin, Ohio 43017 / US | [1991/19] | Inventor(s) | 01 /
Earl, Gary W. 180 S. Cassady Road Bexley, Ohio / US | 02 /
Portwood, Owen 5275 Sandalwood Court Columbus, Ohio / US | [1991/19] | Representative(s) | Schmidt-Evers, Jürgen, et al Mitscherlich PartmbB Patent- und Rechtsanwälte Postfach 33 06 09 80066 München / DE | [N/P] |
| Former [2008/35] | Schmidt-Evers, Jürgen, et al Mitscherlich & Partner Patent- und Rechtsanwälte Postfach 33 06 09 80066 München / DE | ||
| Former [1991/19] | Schmidt-Evers, Jürgen, Dipl.-Ing., et al Patentanwälte Mitscherlich & Partner, Sonnenstrasse 33, Postfach 33 06 09 D-80066 München / DE | Application number, filing date | 90120949.4 | 31.10.1990 | [1991/19] | Priority number, date | US19890431308 | 03.11.1989 Original published format: US 431308 | [1991/19] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0426177 | Date: | 08.05.1991 | Language: | EN | [1991/19] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.01.1991 | Classification | IPC: | C07C213/00, C07C215/40, C07C219/08 | [1991/19] | CPC: |
C07C213/00 (EP,US);
C07C215/40 (EP,US);
C07C219/08 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, LU, NL [1991/19] | Title | German: | Verfahren zur Herstellung von quartären Ammoniumverbindungen | [1991/19] | English: | Process for preparing quaternary ammonium compounds | [1991/19] | French: | Procédé de préparation de composés d'ammonium quaternaires | [1991/19] | File destroyed: | 22.02.2000 | Examination procedure | 08.11.1991 | Application deemed to be withdrawn, date of legal effect [1992/28] | 13.02.1992 | Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time [1992/28] |
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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 | [AD]US2775604 (DAVID ZECH JOHN); | [X]FR1265818 (SCIENT DE NEUILLY LAB); | [X]FR1446001 (ROHM & HAAS); | [AD]US3932495 (MARTINSSON EVA MARGARETA, et al); | [A]GB2116970 (NALCO CHEMICAL CO); | [A]FR2574400 (INTEROX [BE]); | [AL]EP0263911 (MIRANOL INC [US]) |