EP0745581 - Process for the preparation of glycine-N,N-diacetic acid derivatives from the reaction of glycine derivatives or their precursors with formaldehyde and an alkalimetal cyanide in an acidic aqueous medium [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.02.2001 Database last updated on 22.08.2024 | Most recent event Tooltip | 26.09.2003 | Lapse of the patent in a contracting state New state(s): DK | published on 12.11.2003 [2003/46] | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [1996/49] | Inventor(s) | 01 /
Greindl, Thomas, Dr. Am Tiergarten 8 94127 Neuburg / DE | 02 /
Oftring, Alfred, Dr. Im Röhrich 49 67098 Bad Dürkheim / DE | 03 /
Braun, Gerold, Dr. Prümer Strasse 19 67071 Ludwigshafen / DE | 04 /
Wild, Jochen, Dr. St.-Martin-Str. 22 67152 Ruppertsberg / DE | 05 /
Potthoff-Karl, Birgit, Dr. Grünerstr. 7 67061 Ludwigshafen / DE | 06 /
Schuh, Georg Buergermeister-Horlacher-Str. 84 67067 Ludwigshafen / DE | [1996/49] | Application number, filing date | 96108081.9 | 21.05.1996 | [1996/49] | Priority number, date | DE1995118987 | 29.05.1995 Original published format: DE 19518987 | [1996/49] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0745581 | Date: | 04.12.1996 | Language: | DE | [1996/49] | Type: | A3 Search report | No.: | EP0745581 | Date: | 10.12.1997 | [1997/50] | Type: | B1 Patent specification | No.: | EP0745581 | Date: | 05.04.2000 | Language: | DE | [2000/14] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 22.10.1997 | Classification | IPC: | C07C229/16, C07C227/26, C07C227/24, C07C227/14, C07C227/16 | [1997/49] | CPC: |
C07C229/16 (EP,US);
C07C227/26 (EP,US)
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Former IPC [1996/49] | C07C229/16, C07C227/26 | Designated contracting states | BE, DE, DK, ES, FR, GB, IT, NL [1996/49] | Title | German: | Verfahren zur Herstellung von Glycin-N,N-diessigsäure-Derivaten durch Umsetzung von Glycinderivaten oder deren Vorstufen mit Formaldehyd und Alkalimetallcyanid in wässrig-alkalischem Medium | [1996/49] | English: | Process for the preparation of glycine-N,N-diacetic acid derivatives from the reaction of glycine derivatives or their precursors with formaldehyde and an alkalimetal cyanide in an acidic aqueous medium | [1996/49] | French: | Procédé pour la préparation de dérivés de glycine-N,N-diacétique par réaction de dérivés de la glycine ou de leurs précurseurs avec le formaldéhyde et du cyanure de métal alcalin dans un milieu acide aqueux | [1996/49] | Examination procedure | 31.10.1997 | Examination requested [1998/02] | 05.10.1998 | Despatch of a communication from the examining division (Time limit: M06) | 07.04.1999 | Reply to a communication from the examining division | 16.07.1999 | Despatch of communication of intention to grant (Approval: Yes) | 21.09.1999 | Communication of intention to grant the patent | 23.10.1999 | Fee for grant paid | 23.10.1999 | Fee for publishing/printing paid | Opposition(s) | 06.01.2001 | No opposition filed within time limit [2001/12] | Fees paid | Renewal fee | 26.05.1998 | Renewal fee patent year 03 | 28.05.1999 | 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 | BE | 31.05.2000 | DK | 05.07.2000 | [2003/46] |
Former [2001/22] | BE | 31.05.2000 | Documents cited: | Search | [A]DE4319935 (BASF AG [DE]) [A] 1-3 * page 6 - page 8 *; | [D]WO9429421 (BASF AG [DE], et al); | [A]EP0287885 (BASF AG [DE]) [A] 1-3 * examples 1-3; claims 1-3 *; | [AD]DE2027972 (W.R. GRACE & CO) [AD] 1 * page 4 - page 8 *; | [AD]US3733355 (HARRIS E, et al) [AD] 1 * column W *; | [AD]US2500019 (BERSWORTH FREDERICK C) [AD] 1 * column 3 - column 5 * |