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EP0494440
European procedure
Extract from the Register of European Patents
EP About this file: EP0494440
| EP0494440 - Continuous process for preparing isobutyric acid by Koch's synthesis [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 14.06.1996 Database last updated on 08.10.2024 | Most recent event Tooltip | 20.02.1998 | Lapse of the patent in a contracting state New state(s): DK | published on 08.04.1998 [1998/15] | Applicant(s) | For all designated states Röhm GmbH Kirschenallee D-64293 Darmstadt / DE | [1992/29] | Inventor(s) | 01 /
Ruppert, Wolfgang, Dr.-Ing. Am Mühlgraben 9 W-6101 Bickenbach / DE | 02 /
Plösser, Willi Eberstädter Strasse 33 W-6104 Seeheim-Jugenheim 3 / DE | [1992/29] | Application number, filing date | 91122148.9 | 23.12.1991 | [1992/29] | Priority number, date | DE19914100420 | 09.01.1991 Original published format: DE 4100420 | [1992/29] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0494440 | Date: | 15.07.1992 | Language: | DE | [1992/29] | Type: | A3 Search report | No.: | EP0494440 | Date: | 20.01.1993 | Language: | DE | [1993/03] | Type: | B1 Patent specification | No.: | EP0494440 | Date: | 09.08.1995 | Language: | DE | [1995/32] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 30.11.1992 | Classification | IPC: | C07C51/14 | [1993/03] | CPC: |
C07C51/14 (EP)
| C-Set: |
C07C51/14, C07C53/124 (EP)
|
| Former IPC [1992/29] | C07C53/124, C07C51/14 | Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, NL, SE [1992/29] | Title | German: | Kontinuierliches Verfahren zur Herstellung von Isobuttersäure durch Koch'sche Synthese | [1992/29] | English: | Continuous process for preparing isobutyric acid by Koch's synthesis | [1992/29] | French: | Procédé continu pour la préparation d'acide isobutyrique par la synthèse de Koch | [1995/32] |
| Former [1992/29] | Procédé continu pour le préparation d'acide isobutyrique par la synthèse de Koch | Examination procedure | 31.03.1993 | Examination requested [1993/21] | 22.06.1994 | Despatch of a communication from the examining division (Time limit: M04) | 19.10.1994 | Reply to a communication from the examining division | 12.12.1994 | Despatch of communication of intention to grant (Approval: Yes) | 10.02.1995 | Communication of intention to grant the patent | 01.03.1995 | Fee for grant paid | 01.03.1995 | Fee for publishing/printing paid | Opposition(s) | 10.05.1996 | No opposition filed within time limit [1996/31] | Fees paid | Renewal fee | 29.11.1993 | Renewal fee patent year 03 | 02.12.1994 | Renewal fee patent year 04 |
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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. | Lapses during opposition Tooltip | DK | 09.08.1995 | AT | 23.12.1995 | CH | 31.12.1995 | LI | 31.12.1995 | [1998/15] |
| Former [1997/28] | AT | 23.12.1995 | |
| CH | 31.12.1995 | ||
| LI | 31.12.1995 | Documents cited: | Search | [YD]US2831877 (HERBERT KOCH); | [Y]US3661951 (MILLER EUGENE J JR, et al); | [A]EP0310878 (ROEHM GMBH [DE]) |