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EP0556681
European procedure
Extract from the Register of European Patents
EP About this file: EP0556681
| EP0556681 - Process for the preparation of esters of omega-formylalkanoic acids [Right-click to bookmark this link] | Status | Patent revoked Status updated on 02.07.2004 Database last updated on 13.07.2024 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
| Former [1993/34] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Roeper, Michael, Prof. Dr. Albert-Schweitzer-Strasse 10 W-6706 Wachenheim / DE | 02 /
Lorz, Peter Michael, Dr. L4, 10 W-6800 Mannheim 1 / DE | 03 /
Koeffer, Dieter, Dr. Zinkgrafstrasse 1 W-6940 Weinheim / DE | [1993/34] | Application number, filing date | 93101918.6 | 08.02.1993 | [1993/34] | Priority number, date | DE19924204808 | 18.02.1992 Original published format: DE 4204808 | [1993/34] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0556681 | Date: | 25.08.1993 | Language: | DE | [1993/34] | Type: | B1 Patent specification | No.: | EP0556681 | Date: | 28.05.1997 | Language: | DE | [1997/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.04.1993 | Classification | IPC: | C07C67/347, C07C69/716 | [1993/34] | CPC: |
C07C67/347 (EP,US)
| C-Set: |
C07C67/347, C07C69/716 (EP,US)
| Designated contracting states | BE, CH, DE, ES, FR, GB, IT, LI, NL [1993/34] | Title | German: | Verfahren zur Herstellung von omega-Formylalkancarbonsäureestern | [1993/34] | English: | Process for the preparation of esters of omega-formylalkanoic acids | [1993/34] | French: | Procédé de préparation d'esters d'acides oméga-formylalcanecarboxyliques | [1993/34] | Examination procedure | 27.04.1993 | Examination requested [1993/34] | 19.04.1995 | Despatch of a communication from the examining division (Time limit: M04) | 26.08.1995 | Reply to a communication from the examining division | 03.11.1995 | Despatch of a communication from the examining division (Time limit: M04) | 13.12.1995 | Reply to a communication from the examining division | 25.02.1996 | Despatch of a communication from the examining division (Time limit: M04) | 26.02.1996 | Despatch of a communication from the examining division (Time limit: M04) | 17.06.1996 | Reply to a communication from the examining division | 02.10.1996 | Despatch of communication of intention to grant (Approval: Yes) | 04.11.1996 | Communication of intention to grant the patent | 18.12.1996 | Fee for grant paid | 18.12.1996 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
02.03.1998
02.04.1998
ADMISSIBLE Koninklijke DSM N.V. P.O. Box 9 6160 MA Geleen / NL | [2004/27] |
| Former [1998/17] | |||
| Opponent(s) | 01
02.03.1998
DSM N.V Postbus 605 6160 AP Geleen / NL | 07.04.1998 | Invitation to proprietor to file observations on the notice of opposition | 07.10.1998 | Reply of patent proprietor to notice(s) of opposition | 08.10.1999 | Date of oral proceedings | 02.11.1999 | Despatch of interlocutory decision in opposition | 02.11.1999 | Despatch of minutes of oral proceedings | 16.03.2004 | Legal effect of revocation of patent [2004/34] | 16.03.2004 | Despatch of communication that the patent will be revoked | Appeal following opposition | 21.12.1999 | Appeal received No. T0032/00 | 18.02.2000 | Statement of grounds filed | 16.03.2004 | Result of appeal procedure: revocation of the patent | 16.03.2004 | Date of oral proceedings | 25.03.2004 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 25.02.1995 | Renewal fee patent year 03 | 26.02.1996 | Renewal fee patent year 04 | 25.02.1997 | Renewal fee patent year 05 |
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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]EP0125567 (BASF AG [DE]); | [AD]US4769498 (BILLIG ERNST [US], et al); | [A]EP0306094 (SHELL INT RESEARCH [NL]) | Examination | US4748261 | - Canadian Journal of Chemistry, 46, 1968, 2225; D. McGreer | - Bulletin of the Chemical Society of Japan, 46, 1973, 528; A. Matsuda | - Tetrahedron Letters, 28, 1972, 5769; H. Singer |