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Extract from the Register of European Patents

EP About this file: EP0554098

EP0554098 - Process for the preparation of imidazo(4,5-b)pyridine derivatives [Right-click to bookmark this link]
Former [1993/31]Process for the preparation of imidazo 4,5-b pyridine derivatives
[1998/36]
StatusNo opposition filed within time limit
Status updated on  09.07.1999
Database last updated on 19.07.2024
Most recent event   Tooltip09.07.1999No opposition filed within time limitpublished on 25.08.1999 [1999/34]
Applicant(s)For all designated states
Zeneca Limited
15 Stanhope Gate
London W1Y 6LN / GB
[N/P]
Former [1995/28]For all designated states
ZENECA LIMITED
15 Stanhope Gate
London W1Y 6LN / GB
Former [1993/31]For all designated states
Zeneca Limited
15 Stanhope Gate
London W1Y 6LN / GB
Inventor(s)01 / Thomas, Andrew Peter
Alderley Park
Macclesfield, Cheshire, SK10 4TG / GB
02 / Lee, Stanley Arnold
Alderley Park
Macclesfield, Cheshire, SK10 4TG / GB
03 / Martin, David Michael Glanville
Alderley Park
Macclesfield, Cheshire, SK10 4TG / GB
04 / Powell, Lyn
Alderley Park
Macclesfield, Cheshire, SK10 4TG / GB
[1993/31]
Representative(s)Tait, Brian Steele, et al
Intellectual Property Department ZENECA Pharmaceuticals Mereside Alderley Park
Macclesfield Cheshire SK10 4TG / GB
[N/P]
Former [1998/36]Tait, Brian Steele, et al
Intellectual Property Department ZENECA Pharmaceuticals Mereside Alderley Park
Macclesfield Cheshire SK10 4TG / GB
Former [1993/31]Smith, Stephen Collyer, et al
ICI Group Patents Services Dept. PO Box 6 Shire Park Bessemer Road
Welwyn Garden City Herts, AL7 1HD / GB
Application number, filing date93300644.728.01.1993
[1993/31]
Priority number, dateGB1992000171528.01.1992         Original published format: GB 9201715
[1993/31]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0554098
Date:04.08.1993
Language:EN
[1993/31]
Type: A3 Search report 
No.:EP0554098
Date:29.09.1993
Language:EN
[1993/39]
Type: B1 Patent specification 
No.:EP0554098
Date:02.09.1998
Language:EN
[1998/36]
Search report(s)(Supplementary) European search report - dispatched on:EP06.08.1993
ClassificationIPC:C07D471/04, // A61K31/435 ,(C07D471/04, 235:00, 221:00)
[1993/31]
CPC:
C07D471/04 (EP,KR,US)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI [1998/36]
Former [1993/31]AT,  BE,  CH,  DE,  DK,  ES,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zur Herstellung von Imidazo(4,5-b)Pyridinderivaten[1993/31]
English:Process for the preparation of imidazo(4,5-b)pyridine derivatives[1998/36]
French:Procédé pour la préparation de dérivés de l'imidazo(4,5-b)pyridine[1993/31]
Former [1993/31]Process for the preparation of imidazo 4,5-b pyridine derivatives
Examination procedure21.12.1993Examination requested  [1994/08]
31.01.1997Despatch of a communication from the examining division (Time limit: M04)
23.05.1997Reply to a communication from the examining division
15.09.1997Despatch of communication of intention to grant (Approval: Yes)
06.03.1998Communication of intention to grant the patent
18.03.1998Fee for grant paid
18.03.1998Fee for publishing/printing paid
Opposition(s)03.06.1999No opposition filed within time limit [1999/34]
Fees paidRenewal fee
16.12.1994Renewal fee patent year 03
10.01.1996Renewal fee patent year 04
08.01.1997Renewal fee patent year 05
08.01.1998Renewal fee patent year 06
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Documents cited:Search[AD]EP0399731  (ICI PLC [GB])
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.