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EP0535927
European procedure
Extract from the Register of European Patents
EP About this file: EP0535927
| EP0535927 - Process for producing lower alkyl 2-keto-L-gulonate [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 09.05.1997 Database last updated on 01.01.2025 | Most recent event Tooltip | 07.12.2007 | Lapse of the patent in a contracting state New state(s): NL | published on 09.01.2008 [2008/02] | Applicant(s) | For all designated states Takeda Chemical Industries, Ltd. 1-1, Doshomachi, 4-chome Chuo-ku Osaka 541 / JP | [N/P] |
| Former [1993/14] | For all designated states TAKEDA CHEMICAL INDUSTRIES, LTD. 1-1, Doshomachi 4-chome Chuo-ku, Osaka 541 / JP | Inventor(s) | 01 /
Sokukawa, Masaki 23-7, Fukazawacho 1-chome Takatsuki, Osaka 569 / JP | 02 /
Yasumura, Yoshihiro 2-12, Tsukushigaoka 6-chome Kita-ku, Kobe-shi, Hyogo 651-12 / JP | 03 /
Makino, Kaoru 8-3, Okamachikita 1-chome Toyonaka, Osaka 560 / JP | [1993/14] | Representative(s) | Lewin, John Harvey Elkington and Fife LLP Prospect House 8 Pembroke Road Sevenoaks Kent TN13 1XR / GB | [N/P] |
| Former [1996/38] | Lewin, John Harvey Elkington and Fife, Prospect House, 8 Pembroke Road Sevenoaks, Kent TN13 1XR / GB | ||
| Former [1993/14] | Lewin, John Harvey ELKINGTON AND FIFE Prospect House, 8 Pembroke Road Sevenoaks, Kent, TN13 1XR / GB | Application number, filing date | 92308902.3 | 30.09.1992 | [1993/14] | Priority number, date | JP19910253580 | 01.10.1991 Original published format: JP 25358091 | [1993/14] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0535927 | Date: | 07.04.1993 | Language: | EN | [1993/14] | Type: | B1 Patent specification | No.: | EP0535927 | Date: | 03.07.1996 | Language: | EN | [1996/27] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 05.02.1993 | Classification | IPC: | C07C69/716, C07C67/08 | [1993/14] | CPC: |
C07C69/716 (EP,KR,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LI, LU, NL, PT, SE [1993/14] | Title | German: | Verfahren zur Herstellung von niedrigem Alkyl-2-oxo-L-Gulonat | [1993/14] | English: | Process for producing lower alkyl 2-keto-L-gulonate | [1993/14] | French: | Procédé de production d'alkyle inférieur 2-céto-L-gulonate | [1993/14] | Examination procedure | 18.06.1993 | Examination requested [1993/34] | 29.12.1994 | Despatch of a communication from the examining division (Time limit: M06) | 28.06.1995 | Reply to a communication from the examining division | 30.08.1995 | Despatch of communication of intention to grant (Approval: Yes) | 29.12.1995 | Communication of intention to grant the patent | 22.03.1996 | Fee for grant paid | 22.03.1996 | Fee for publishing/printing paid | Opposition(s) | 04.04.1997 | No opposition filed within time limit [1997/26] | Fees paid | Renewal fee | 08.09.1994 | Renewal fee patent year 03 | 08.09.1995 | Renewal fee patent year 04 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| 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 | 03.07.1996 | DK | 03.07.1996 | ES | 03.07.1996 | GR | 03.07.1996 | IT | 03.07.1996 | NL | 03.07.1996 | LU | 30.09.1996 | PT | 03.10.1996 | SE | 03.10.1996 | [2003/07] |
| Former [2002/25] | BE | 03.07.1996 | |
| DK | 03.07.1996 | ||
| ES | 03.07.1996 | ||
| GR | 03.07.1996 | ||
| IT | 03.07.1996 | ||
| LU | 30.09.1996 | ||
| PT | 03.10.1996 | ||
| SE | 03.10.1996 | ||
| Former [2000/05] | BE | 03.07.1996 | |
| DK | 03.07.1996 | ||
| GR | 03.07.1996 | ||
| IT | 03.07.1996 | ||
| LU | 30.09.1996 | ||
| PT | 03.10.1996 | ||
| SE | 03.10.1996 | ||
| Former [1999/42] | BE | 03.07.1996 | |
| DK | 03.07.1996 | ||
| IT | 03.07.1996 | ||
| PT | 03.10.1996 | ||
| SE | 03.10.1996 | ||
| Former [1998/15] | BE | 03.07.1996 | |
| DK | 03.07.1996 | ||
| PT | 03.10.1996 | ||
| SE | 03.10.1996 | ||
| Former [1997/24] | BE | 03.07.1996 | |
| PT | 03.10.1996 | ||
| SE | 03.10.1996 | ||
| Former [1997/22] | PT | 03.10.1996 | |
| SE | 03.10.1996 | ||
| Former [1997/17] | SE | 03.10.1996 | Documents cited: | Search | [A]DD39696 ; | [A]EP0403351 (RHONE POULENC SANTE [FR]) | [AD] - HELVETICA CHIMICA ACTA vol. 17, 1934, BASEL CH pages 311 - 328 T. REICHSTEIN ET AL. 'Eine ergiebige Synthese der I-Ascorbins{ure (C-Vitamin)' | [A] - DATABASE WPI Week 6800, Derwent Publications Ltd., London, GB; AN 66-17341 & DD-A-39 696 (STOPSACK), & DD39696 A 00000000 |