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EP0546742
European procedure
Extract from the Register of European Patents
EP About this file: EP0546742
| EP0546742 - 4-(1,1-Dialkoxycarbonyl-alkyl)azetidin-2-one derivatives and synthesis of 4-(1-carboxy-alkyl)azetidin-2-one derivatives therefrom [Right-click to bookmark this link] | |||
| Former [1993/24] | 4-(1,1-Dialkoxycarbonyl-alkyl)azetidin-2-one-derivatives and synthesis of 4-(1-carboxy-alkyl)azetidin-2-one derivatives therefrom | ||
| [2001/25] | Status | No opposition filed within time limit Status updated on 26.04.2002 Database last updated on 24.08.2024 | Most recent event Tooltip | 26.04.2002 | No opposition filed within time limit | published on 12.06.2002 [2002/24] | Applicant(s) | For all designated states Takasago International Corporation 37-1, Kamata 5-chome, Ohta-ku Tokyo / JP | [N/P] |
| Former [1999/47] | For all designated states Takasago International Corporation 37-1, Kamata 5-chome, Ohta-ku Tokyo / JP | ||
| Former [1993/24] | For all designated states Takasago International Corporation 19-22, Takanawa 3-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Miura, Takashi, c/o Takasago Int. Corporation Central Res, Lab., 36-31, Kamata 5-chome Ohta-ku, Tokyo / JP | 02 /
Murayama, Toshiyuki, c/o Takasago Int. Corporation Central Res, Lab., 36-31, Kamata 5-chome Ohta-ku, Tokyo / JP | 03 /
Yoshida, Akifumi, c/o Takasago Int. Corporation Central Res, Lab., 36-31, Kamata 5-chome Ohta-ku, Tokyo / JP | 04 /
Kobayashi, Toyohiko, c/o Takasago Int. Corporation Central Res, Lab., 36-31, Kamata 5-chome Ohta-ku, Tokyo / JP | [1993/24] | Representative(s) | Dixon, Donald Cossar, et al Wilson Gunn Gee Chancery House Chancery Lane London WC2A 1QU / GB | [N/P] |
| Former [2001/25] | Dixon, Donald Cossar, et al Gee & Co. Chancery House Chancery Lane London WC2A 1QU / GB | ||
| Former [1993/24] | Diamond, Bryan Clive, et al Gee & Co. Chancery House Chancery Lane London WC2A 1QU / GB | Application number, filing date | 92310901.1 | 30.11.1992 | [1993/24] | Priority number, date | JP19910324737 | 09.12.1991 Original published format: JP 32473791 | JP19910338673 | 20.12.1991 Original published format: JP 33867391 | [1993/24] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0546742 | Date: | 16.06.1993 | Language: | EN | [1993/24] | Type: | B1 Patent specification | No.: | EP0546742 | Date: | 20.06.2001 | Language: | EN | [2001/25] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.03.1993 | Classification | IPC: | C07D205/08 | [1993/24] | CPC: |
C07D205/08 (EP,US);
Y02P20/55 (EP,US)
| Designated contracting states | CH, DE, FR, GB, IT, LI, NL [1993/24] | Title | German: | 4-(1,1-Dialkoxycarbonyl-Alkyl)Azetidin-2-on-Derivate zur Herstellung von 4-(1-Carboxy-Alkyl)Azetidin-2-on-Derivaten | [2001/25] | English: | 4-(1,1-Dialkoxycarbonyl-alkyl)azetidin-2-one derivatives and synthesis of 4-(1-carboxy-alkyl)azetidin-2-one derivatives therefrom | [2001/25] | French: | Dérivés de (dialcoxycarbonyl-1,1-alkyl)-4-azétidin-2-ones et synthèse de dérivés de (carboxy-1-alkyl)-4-azétidin-2-ones à partir de ces composés | [2001/25] |
| Former [1993/24] | 4-(1,1-Dialkoxycarbonyl-Alkyl)Azetidin-2-Onderivate zur Herstellung von 4-(1-Carboxy-Alkyl)Azetidin-2-Onderivaten | ||
| Former [1993/24] | 4-(1,1-Dialkoxycarbonyl-alkyl)azetidin-2-one-derivatives and synthesis of 4-(1-carboxy-alkyl)azetidin-2-one derivatives therefrom | ||
| Former [1993/24] | Dérivés de (dialcoxycarbonyl-1,1-alkyl)-4-azétidin-2-ones et synthèse de dérivés de carboxy-1-alkyl)-azétidin-2-one à partir de ces composés | Examination procedure | 29.11.1993 | Examination requested [1994/05] | 30.04.1997 | Despatch of a communication from the examining division (Time limit: M06) | 27.10.1997 | Reply to a communication from the examining division | 08.12.1998 | Despatch of a communication from the examining division (Time limit: M04) | 15.04.1999 | Reply to a communication from the examining division | 06.11.2000 | Despatch of communication of intention to grant (Approval: Yes) | 18.12.2000 | Communication of intention to grant the patent | 27.02.2001 | Fee for grant paid | 27.02.2001 | Fee for publishing/printing paid | Opposition(s) | 21.03.2002 | No opposition filed within time limit [2002/24] | Fees paid | Renewal fee | 04.10.1994 | Renewal fee patent year 03 | 24.11.1995 | Renewal fee patent year 04 | 29.11.1996 | Renewal fee patent year 05 | 26.11.1997 | Renewal fee patent year 06 | 30.11.1998 | Renewal fee patent year 07 | 29.11.1999 | Renewal fee patent year 08 | 28.11.2000 | Renewal fee patent year 09 |
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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 | [A]EP0045198 (TAKEDA CHEMICAL INDUSTRIES LTD [JP]); | [A]EP0052299 (TAKEDA CHEMICAL INDUSTRIES LTD [JP]) | [A] - TETRAHEDRON LETTERS vol. 22, no. 52, 1981, G. B. pages 5335 - 5338 C.W. GREENGRASS 'STUDIES ON 1-CARBADETHIACEPHEMS, PART I: SYNTHESIS OF 1-CARBADETHIA-2-OXOCEPHEM 4-CARBOXYLATE.' | [AD] - TETRAHEDRON LETTERS vol. 30, no. 3, 1989, OXFORD GB pages 337 - 340 R. JOYEAU 'CARBACEPHEMS AND 4-METHYLENE-AZETIDIN-2-ONES BY COPPER-MEDIATED AMIDE NITROGEN-VINYLIC CARBON RING CLOSURE.' |