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Extract from the Register of European Patents

EP About this file: EP0514890

EP0514890 - Method for purifying polysaccharides [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.08.1997
Database last updated on 03.10.2024
Most recent event   Tooltip01.08.1997No opposition filed within time limitpublished on 17.09.1997 [1997/38]
Applicant(s)For all designated states
Shin-Etsu Chemical Co., Ltd.
6-1, Otemachi 2-chome Chiyoda-ku
Tokyo 100 / JP
For all designated states
SHIN-ETSU BIO, Inc.
6650 Lusk Boulevard, Suite B-102
San Diego, CA 92121 / US
[N/P]
Former [1995/43]For all designated states
Shin-Etsu Chemical Co., Ltd.
6-1, Otemachi 2-chome
Chiyoda-ku Tokyo 100 / JP
For all designated states
SHIN-ETSU BIO, Inc.
6650 Lusk Boulevard, Suite B-102
San Diego, CA 92121 / US
Former [1992/48]For all designated states
Shin-Etsu Chemical Co., Ltd.
6-1, Otemachi 2-chome
Chiyoda-ku Tokyo 100 / JP
Inventor(s)01 / Maruyama, Kazumasa, Synthetic Technology Lab.
Shin-Etsu Chem. Co,Ltd, 28-1, Oaza Nishi-fukushima
Kubiki-mura, Nakakubiki-gun, Nigata 942 / JP
02 / Yamamoto, Kazuyuki, Synthetic Technology Lab.
Shin-Etsu Chem. Co,Ltd, 28-1, Oaza Nishi-fukushima
Kubiki-mura, Nakakubiki-gun, Nigata 942 / JP
03 / Nagura, Shigehiro, Synthetic Technology Lab.
Shin-Etsu Chem. Co,Ltd, 28-1, Oaza Nishi-fukushima
Kubiki-mura, Nakakubiki-gun, Nigata 942 / JP
04 / Homma, Taira, Synthetic Technology Lab.
Shin-Etsu Chem. Co,Ltd, 28-1, Oaza Nishi-fukushima
Kubiki-mura, Nakakubiki-gun, Nigata 942 / JP
[1992/48]
Representative(s)Bühling, Gerhard, et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München / DE
[N/P]
Former [1992/48]Bühling, Gerhard, Dipl.-Chem., et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
D-80336 München / DE
Application number, filing date92108591.621.05.1992
[1992/48]
Priority number, dateJP1991011758222.05.1991         Original published format: JP 11758291
[1992/48]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0514890
Date:25.11.1992
Language:EN
[1992/48]
Type: A3 Search report 
No.:EP0514890
Date:04.08.1993
Language:EN
[1993/31]
Type: B1 Patent specification 
No.:EP0514890
Date:25.09.1996
Language:EN
[1996/39]
Search report(s)(Supplementary) European search report - dispatched on:EP14.06.1993
ClassificationIPC:C08B37/00
[1992/48]
CPC:
C08B37/0003 (EP,US)
Designated contracting statesCH,   DE,   FR,   GB,   LI [1992/48]
TitleGerman:Verfahren zur Herstellung von Polysacchariden[1992/48]
English:Method for purifying polysaccharides[1992/48]
French:Procédé pour purifier des polysaccharides[1992/48]
Examination procedure20.09.1993Examination requested  [1993/46]
14.05.1994Despatch of a communication from the examining division (Time limit: M04)
19.05.1994Despatch of a communication from the examining division (Time limit: M04)
28.09.1994Reply to a communication from the examining division
25.01.1995Despatch of a communication from the examining division (Time limit: M04)
23.05.1995Reply to a communication from the examining division
23.10.1995Despatch of communication of intention to grant (Approval: Yes)
12.01.1996Communication of intention to grant the patent
16.04.1996Fee for grant paid
16.04.1996Fee for publishing/printing paid
Opposition(s)26.06.1997No opposition filed within time limit [1997/38]
Fees paidRenewal fee
26.05.1994Renewal fee patent year 03
24.05.1995Renewal fee patent year 04
29.05.1996Renewal fee patent year 05
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Documents cited:Search[Y]JP58103502  ;
 [Y]JP48029309B  ;
 [A]GB2218429  (CHISSO CORP [JP]);
 [A]GB2232993  (JUNGBUNZLAUER AG [AT]);
 [AD]EP0375099  (DAI ICHI KOGYO SEIYAKU CO LTD [JP]);
 [A]US4690788  (YADA AKIRA [JP], et al)
 [Y]  - DATABASE WPIL Week 8330, Derwent Publications Ltd., London, GB; AN 720349 & JP-A-58 103 502 (MITSUBISHI ACETATE) 20 June 1983, & JP58103502 A 19830620
 [Y]  - DATABASE WPI Week 7337, Derwent Publications Ltd., London, GB; AN 54371U & JP-B-48 029 309 (TEIJIN LTD) 8 September 1973, & JP48029309B B 19730908
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.