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Extract from the Register of European Patents

EP About this file: EP0322236

EP0322236 - Catalytic process for preparing optically active threonine [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.03.1995
Database last updated on 03.08.2024
Most recent event   Tooltip09.03.1995No opposition filed within time limitpublished on 26.04.1995 [1995/17]
Applicant(s)For all designated states
Takasago International Corporation
19-22, Takanawa 3-chome Minato-ku
Tokyo 108 / JP
[N/P]
Former [1989/26]For all designated states
Takasago International Corporation
19-22, Takanawa 3-chome Minato-ku
Tokyo / JP
Inventor(s)01 / Taketomi, Takanao
117-2, Ookido-cho
Chiba-shi Chiba / JP
02 / Kumobayashi, Hidenori
1-4-39, Nakakaigan
Chigasaki-shi Kanagawa / JP
[1994/18]
Former [1989/26]01 / Taketomi, Takanao
117-2, Ookido-cho
Chiba-shi Chiba / JP
02 / Kumobayashi, Hidenori
1-4-3, Nakakaigan
Chigasaki-shi Kanagawa / JP
Representative(s)Diamond, Bryan Clive, et al
Gee & Co. Chancery House Chancery Lane
London WC2A 1QU / GB
[1989/26]
Application number, filing date88312185.722.12.1988
[1989/26]
Priority number, dateJP1987032439922.12.1987         Original published format: JP 32439987
[1989/26]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0322236
Date:28.06.1989
Language:EN
[1989/26]
Type: A3 Search report 
No.:EP0322236
Date:29.08.1990
Language:EN
[1990/35]
Type: B1 Patent specification 
No.:EP0322236
Date:04.05.1994
Language:EN
[1994/18]
Search report(s)(Supplementary) European search report - dispatched on:EP12.07.1990
ClassificationIPC:C07C231/10, C07C233/45, C07C271/06, C07C229/04, C07C227/00
[1994/18]
CPC:
C07C227/32 (EP,US); C07C231/18 (EP,US); C07C269/06 (EP,US)
Former IPC [1989/26]C07C102/02, C07C103/46, C07C125/06, C07C101/30, C07C99/00
Designated contracting statesCH,   DE,   FR,   GB,   LI,   NL [1989/26]
TitleGerman:Katalytisches Verfahren zur Herstellung von optisch aktivem Threonin[1989/26]
English:Catalytic process for preparing optically active threonine[1989/26]
French:Procédé catalytique de préparation de thréonine optiquement active[1989/26]
Examination procedure31.12.1990Examination requested  [1991/10]
04.02.1993Despatch of a communication from the examining division (Time limit: M06)
02.08.1993Reply to a communication from the examining division
16.09.1993Despatch of communication of intention to grant (Approval: Yes)
04.11.1993Communication of intention to grant the patent
28.01.1994Fee for grant paid
28.01.1994Fee for publishing/printing paid
Opposition(s)07.02.1995No opposition filed within time limit [1995/17]
Fees paidRenewal fee
31.12.1990Renewal fee patent year 03
27.12.1991Renewal fee patent year 04
02.11.1992Renewal fee patent year 05
21.12.1993Renewal fee patent year 06
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Documents cited:Search[Y]FR2176128  (MONSANTO CO [US]);
 [YP]EP0295109  (TAKASAGO PERFUMERY CO LTD [JP]);
 [A]EP0174057
 [A]  - HELVETICA CHIMICA ACTA, vol. 70, no. 1, 4th February 1987, pages 232-236; M. SOUKUP et al.: "Enantioselektive synthese des L-Threonins"
Examination   - ALDRICH, 1990, Aldrich Chemical Company, Inc., Milwaukee, Wisconsin, USA, p. 1243
    - CHEMISTRY OF THE AMINO ACIDS, J. P. Greenstein and M. Winith, vol. 3, John Wiley & Sons, Inc., New York, London; chapter 37, pp. 2238-2258
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.