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Extract from the Register of European Patents

EP About this file: EP0303518

EP0303518 - Improved process for preparing water-absorbing resins [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.12.1993
Database last updated on 11.09.2024
Most recent event   Tooltip30.11.2007Lapse of the patent in a contracting state
Updated state(s): FR		published on 02.01.2008  [2008/01]
Applicant(s)For all designated states
AMERICAN COLLOID COMPANY
One North Arlington, 1500 West Shure Drive
Arlington Heights, Illinois 60004 / US
[1990/14]
Former [1989/07]For all designated states
AMERICAN COLLOID COMPANY
One North Arlington 1500 West Shure Drive
Arlington Heights Illinois 60004 / US
Inventor(s)01 / Alexander, William
242 Terrance
Naperville Illinois 60540 / US
02 / Anderson, Mark
500 North Carlton
Wheaton Illinois 60187 / US
03 / Regan, Barbara R.
2724 Harrison
Glenview Illinois 60025 / US
[1989/07]
Representative(s)Wain, Christopher Paul, et al
A.A. Thornton & Co. 235 High Holborn London
WC1V 7LE / GB
[N/P]
Former [1989/07]Wain, Christopher Paul, et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE / GB
Application number, filing date88307546.715.08.1988
[1989/07]
Priority number, dateUS1987008597414.08.1987         Original published format: US 85974
[1989/07]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0303518
Date:15.02.1989
Language:EN
[1989/07]
Type: A3 Search report 
No.:EP0303518
Date:18.10.1989
Language:EN
[1989/42]
Type: B1 Patent specification 
No.:EP0303518
Date:17.02.1993
Language:EN
[1993/07]
Search report(s)(Supplementary) European search report - dispatched on:EP29.08.1989
ClassificationIPC:C08F220/06, A61L15/00
[1989/07]
CPC:
C08F220/06 (EP,KR); A61L15/00 (KR)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   NL,   SE [1989/07]
TitleGerman:Verfahren zur Herstellung von wasserabsorbierenden Harzen[1989/07]
English:Improved process for preparing water-absorbing resins[1989/07]
French:Procédé de préparation de résines absorbant l'eau[1989/07]
Examination procedure19.01.1990Examination requested  [1990/12]
21.06.1991Despatch of a communication from the examining division (Time limit: M04)
18.10.1991Reply to a communication from the examining division
10.04.1992Despatch of communication of intention to grant (Approval: Yes)
11.08.1992Communication of intention to grant the patent
22.09.1992Fee for grant paid
22.09.1992Fee for publishing/printing paid
Opposition(s)19.11.1993No opposition filed within time limit [1994/07]
Fees paidRenewal fee
28.08.1990Renewal fee patent year 03
08.08.1991Renewal fee patent year 04
10.08.1992Renewal 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  TooltipAT17.02.1993
BE17.02.1993
CH17.02.1993
ES17.02.1993
FR17.02.1993
GR17.02.1993
IT17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
[2004/35]
Former [2002/24]AT17.02.1993
BE17.02.1993
CH17.02.1993
ES17.02.1993
GR17.02.1993
IT17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
FR09.07.1993
Former [2000/04]AT17.02.1993
BE17.02.1993
CH17.02.1993
GR17.02.1993
IT17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
FR09.07.1993
Former [1999/42]AT17.02.1993
BE17.02.1993
CH17.02.1993
IT17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
FR09.07.1993
Former [1994/25]AT17.02.1993
BE17.02.1993
CH17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
FR09.07.1993
Former [1994/23]BE17.02.1993
CH17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
FR09.07.1993
Former [1993/47]BE17.02.1993
CH17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
Former [1993/38]CH17.02.1993
LI17.02.1993
NL17.02.1993
SE17.02.1993
Former [1993/36]SE17.02.1993
Documents cited:Search[X]DE3239476  (ARAKAWA CHEM IND [JP]);
 [X]EP0207714  (AMERICAN COLLOID CO [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.