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EP0549531
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EP About this file: EP0549531
| EP0549531 - Process for preparing acid anhydrides [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 07.11.1995 Database last updated on 24.08.2024 | Most recent event Tooltip | 07.11.1995 | Application deemed to be withdrawn | published on 27.12.1995 [1995/52] | Applicant(s) | For all designated states Säurefabrik Schweizerhall CH-4133 Schweizerhalle / CH | [1993/26] | Inventor(s) | 01 /
Gallegra, Pasquale, Dr. Im Baumgarten 20 CH-4132 Muttenz / CH | 02 /
Degischer, Gerhard, Dr. Untere Hofackerstrasse 12 CH-4414 Füllinsdorf / CH | [1993/26] | Representative(s) | Schluep, Hans-Peter, et al Ciba Specialty Chemicals Inc. Klybeckstrasse 141 4057 Basel / CH | [N/P] |
| Former [1993/26] | Schluep, Hans-Peter, et al c/o CIBA GEIGY AG Patentabteilung Postfach CH-4002 Basel / CH | Application number, filing date | 92810994.1 | 11.12.1992 | [1993/26] | Priority number, date | CH19910003813 | 20.12.1991 Original published format: CH 381391 | [1993/26] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0549531 | Date: | 30.06.1993 | Language: | DE | [1993/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 30.03.1993 | Classification | IPC: | C07C51/567 | [1993/26] | CPC: |
C07C51/567 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, FR, GB, IT, LI, NL, SE [1993/26] | Title | German: | Verfahren zur Herstellung von Säureanhydriden | [1993/26] | English: | Process for preparing acid anhydrides | [1993/26] | French: | Procédé de préparation d'anhydrides d'acides | [1993/26] | File destroyed: | 03.03.2001 | Examination procedure | 23.07.1993 | Examination requested [1993/38] | 01.07.1995 | Application deemed to be withdrawn, date of legal effect [1995/52] | 28.07.1995 | Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time [1995/52] | Fees paid | Penalty fee | Additional fee for renewal fee | 31.12.1994 | 03 M06 Not yet paid |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 | [X]EP0168293 (RHONE POULENC SPEC CHIM [FR]); | [A]EP0029176 (BASF AG [DE]) |