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Extract from the Register of European Patents

EP About this file: EP0330134

EP0330134 - Modified cellulose for biocompatible dialysis membranes IV, and method for its preparation [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  27.03.1998
Database last updated on 14.05.2024
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
Akzo Nobel N.V.
Velperweg 76
6824 BM Arnhem / NL
[N/P]
Former [1994/19]For all designated states
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Former [1989/35]For all designated states
Akzo N.V.
Postbus 9300 Velperweg 76
NL-6800 SB Arnhem / NL
Inventor(s)01 / Diamantoglou, Michael, Dr.
Kolpingstrasse 4
D-8765 Erlenbach/Main / DE
[1989/35]
Representative(s)Fett, Günter
CPW GmbH Kasinostrasse 19 - 21
42103 Wuppertal / DE
[N/P]
Former [1989/35]Fett, Günter
Akzo Patente GmbH, Postfach 10 01 49
D-42097 Wuppertal / DE
Application number, filing date89102968.821.02.1989
[1989/35]
Priority number, dateDE1988380597325.02.1988         Original published format: DE 3805973
[1989/35]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0330134
Date:30.08.1989
Language:DE
[1989/35]
Search report(s)(Supplementary) European search report - dispatched on:EP28.06.1989
ClassificationIPC:C08B15/00, C08B15/06, C08B37/08, // B01D13/04, A61M1/16
[1989/35]
CPC:
B01D71/10 (EP,US); B01D71/08 (EP,US); C08B15/00 (EP,US);
C08B15/06 (EP,US); C08B37/003 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1989/35]
TitleGerman:Modifizierte Cellulose für biocompatible Dialysemembranen IV und Verfahren zu deren Herstellung[1989/35]
English:Modified cellulose for biocompatible dialysis membranes IV, and method for its preparation[1989/35]
French:Cellulose modifiée, son utilisation comme membranes biocompatibles IV pour la dialyse et procédé pour sa préparation[1989/35]
Examination procedure24.02.1990Examination requested  [1990/17]
13.01.1992Despatch of a communication from the examining division (Time limit: M04)
13.05.1992Reply to a communication from the examining division
21.02.1994Despatch of a communication from the examining division (Time limit: M04)
03.06.1994Reply to a communication from the examining division
11.10.1994Despatch of a communication from the examining division (Time limit: M04)
16.02.1995Reply to a communication from the examining division
14.03.1995Despatch of communication that the application is refused, reason: substantive examination [1998/20]
20.01.1998Application refused, date of legal effect [1998/20]
Appeal following examination04.05.1995Appeal received No.  T0516/95
16.06.1995Statement of grounds filed
20.01.1998Result of appeal procedure: appeal of the applicant was rejected
06.11.1992Appeal received No.  T0220/93
29.01.1993Statement of grounds filed
30.11.1993Result of appeal procedure: appeal of the applicant was rejected
20.01.1998Date of oral proceedings
23.01.1998Minutes of oral proceedings despatched
Fees paidRenewal fee
25.01.1991Renewal fee patent year 03
28.12.1991Renewal fee patent year 04
19.12.1992Renewal fee patent year 05
28.12.1993Renewal fee patent year 06
27.12.1994Renewal fee patent year 07
27.12.1995Renewal fee patent year 08
28.12.1996Renewal fee patent year 09
20.12.1997Renewal fee patent year 10
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Documents cited:SearchJP73102091  [ ];
 [X]US2136299  (HASKINS JOSEPH F);
 [A]EP0028126  (KUREHA CHEMICAL IND CO LTD [JP]);
 [A]EP0172437  (AKZO GMBH [DE])
    [ ] - CHEMICAL ABSTRACTS, vol. 108, no. 16, April 1988, page 141, abstract no. 134282a, Columbus, Ohio, US; T. YAMAGUCHI et al.: "Preparation of activated carbon from lignin products with alkali", & NIPPON KAGAKU KAISHI 1988 (2), 217-20
    [ ] - CHEMICAL ABSTRACTS, vol. 81, no. 2, 15th July 1974, page 65, abstract no. 5095s, Columbus, Ohio, US; & JP-A-73 102 091 (S. WATANABE et al.) 21-12-1973, & JP73102091 A 00000000
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.