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Extract from the Register of European Patents

EP About this file: EP0426467

EP0426467 - Prodrugs of 6-mercaptopurine and 6-thioguanine [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.02.1996
Database last updated on 22.08.2024
Most recent event   Tooltip24.01.2003Change - lapse in a contracting state
Updated state(s): NL		published on 12.03.2003  [2003/11]
Applicant(s)For all designated states
WISCONSIN ALUMNI RESEARCH FOUNDATION
614 North Walnut Street
Madison, WI 53705 / US
[1991/19]
Inventor(s)01 / Elfarra, Adnan
7014 Longmeadow Road
Madison, Wisconsin 53717 / US
[1991/19]
Representative(s)Ellis-Jones, Patrick George Armine, et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5JJ / GB
[N/P]
Former [1991/19]Ellis-Jones, Patrick George Armine, et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX / GB
Application number, filing date90311961.801.11.1990
[1991/19]
Priority number, dateUS1989043209803.11.1989         Original published format: US 432098
US1990054266425.06.1990         Original published format: US 542664
[1991/19]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0426467
Date:08.05.1991
Language:EN
[1991/19]
Type: B1 Patent specification 
No.:EP0426467
Date:05.04.1995
Language:EN
[1995/14]
Search report(s)(Supplementary) European search report - dispatched on:EP20.12.1990
ClassificationIPC:C07D473/38, A61K31/52
[1991/19]
CPC:
C07D473/38 (EP,US); A61P13/02 (EP); A61P15/00 (EP);
A61P35/00 (EP); A61P43/00 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1991/19]
TitleGerman:Pro-drugs von 6-Mercaptopurin und 6-Thioguanin[1995/14]
English:Prodrugs of 6-mercaptopurine and 6-thioguanine[1991/19]
French:Prodrogues de 6-mercaptopurine et 6-thioguanine[1991/19]
Former [1991/19]Prodrugs von 6-Mercaptopurin und 6-Thioguanin
Examination procedure25.02.1991Examination requested  [1991/19]
23.03.1994Despatch of communication of intention to grant (Approval: No)
04.10.1994Despatch of communication of intention to grant (Approval: later approval)
10.10.1994Communication of intention to grant the patent
11.01.1995Fee for grant paid
11.01.1995Fee for publishing/printing paid
Opposition(s)06.01.1996No opposition filed within time limit [1996/13]
Fees paidRenewal fee
09.10.1992Renewal fee patent year 03
08.11.1993Renewal fee patent year 04
15.11.1994Renewal fee patent year 05
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  TooltipAT05.04.1995
BE05.04.1995
DK05.04.1995
ES05.04.1995
GR05.04.1995
NL05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
LU30.11.1995
[2003/11]
Former [2002/24]AT05.04.1995
BE05.04.1995
DK05.04.1995
ES05.04.1995
GR05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
LU30.11.1995
NL30.11.1995
Former [2000/27]AT05.04.1995
BE05.04.1995
DK05.04.1995
GR05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
LU30.11.1995
NL30.11.1995
Former [2000/04]AT05.04.1995
BE05.04.1995
DK05.04.1995
GR05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
LU30.11.1995
Former [1998/15]AT05.04.1995
BE05.04.1995
DK05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
Former [1997/28]AT05.04.1995
BE05.04.1995
SE05.07.1995
CH30.11.1995
LI30.11.1995
Former [1996/04]AT05.04.1995
BE05.04.1995
SE05.07.1995
Former [1996/02]AT05.04.1995
Documents cited:Search[A]DE1695744  ;
 [A]DE3730542  (HOECHST AG [DE]);
 [AP]EP0350742  (HOECHST AG [DE])
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.