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Extract from the Register of European Patents

EP About this file: EP0741701

EP0741701 - PRODUCTION OF POLYSUCCINIMIDE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.06.2000
Database last updated on 03.06.2024
Most recent event   Tooltip04.01.2003Lapse of the patent in a contracting statepublished on 19.02.2003  [2003/08]
Applicant(s)For all designated states
DONLAR CORPORATION
6502 South Archer Avenue
Bedford Park, IL 60501-9998 / US
[1996/46]
Inventor(s)01 / BATZEL, Daniel, A.
4815 Jerome Street
Skokie, IL 60077 / US
[1996/46]
Representative(s)Lawrence, Malcolm Graham, et al
Avidity IP
Broers Building
Hauser Forum
21 JJ Thomson Ave
Cambridge CB3 0FA / GB
[N/P]
Former [1998/04]Lawrence, Malcolm Graham, et al
Hepworth, Lawrence, Bryer & Bizley Merlin House Falconry Court Baker's Lane
Epping Essex CM16 5DQ / GB
Former [1996/46]Couchman, Jonathan Hugh, et al
Hepworth Lawrence Bryer & Bizley Bloxam Court Corporation Street
Rugby, Warwickshire CV21 2DU / GB
Application number, filing date95909366.727.01.1995
[1996/46]
WO1995US01127
Priority number, dateUS1994018852528.01.1994         Original published format: US 188525
[1996/46]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9520573
Date:03.08.1995
Language:EN
[1995/33]
Type: A1 Application with search report 
No.:EP0741701
Date:13.11.1996
Language:EN
The application published by WIPO in one of the EPO official languages on 03.08.1995 takes the place of the publication of the European patent application.
[1996/46]
Type: B1 Patent specification 
No.:EP0741701
Date:25.08.1999
Language:EN
[1999/34]
Search report(s)International search report - published on:US03.08.1995
(Supplementary) European search report - dispatched on:EP12.02.1997
ClassificationIPC:C08F283/04, C08G73/06
[1997/13]
CPC:
C08F22/40 (EP,US); C08F8/44 (EP,US)
C-Set:
C08F8/44, C08F8/12, C08F122/06 (EP,US)
Former IPC [1996/46]C07D207/40, C08F283/04
Designated contracting statesDE,   FR,   GB,   IT,   NL [1996/46]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON POLYSUCCINIMID[1996/46]
English:PRODUCTION OF POLYSUCCINIMIDE[1996/46]
French:PRODUCTION DE POLYSUCCINIMIDE[1996/46]
Entry into regional phase14.08.1996National basic fee paid 
14.08.1996Search fee paid 
14.08.1996Designation fee(s) paid 
14.08.1996Examination fee paid 
Examination procedure24.08.1995Request for preliminary examination filed
International Preliminary Examining Authority: US
14.08.1996Examination requested  [1996/46]
16.10.1997Despatch of a communication from the examining division (Time limit: M06)
26.02.1998Reply to a communication from the examining division
27.05.1998Despatch of a communication from the examining division (Time limit: M02)
06.08.1998Reply to a communication from the examining division
19.10.1998Despatch of communication of intention to grant (Approval: Yes)
26.02.1999Communication of intention to grant the patent
16.04.1999Fee for grant paid
16.04.1999Fee for publishing/printing paid
Opposition(s)26.05.2000No opposition filed within time limit [2000/32]
Fees paidRenewal fee
30.01.1997Renewal fee patent year 03
30.01.1998Renewal fee patent year 04
29.01.1999Renewal fee patent year 05
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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  TooltipNL25.08.1999
[2003/08]
Documents cited:Search[A]WO9323452  (SRCHEM INC [US]) [A] 1-19* the whole document *;
 [PA]DE4305368  (BAYER AG [DE]) [PA] 1-19 * the whole document *
International search[Y]US4839461  (BOEHMKE GUENTHER [DE]);
 [Y]US5219952  (KOSKAN LARRY P [US], et al);
 [YP]US5367047  (WOOD LOUIS L [US])
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.