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Extract from the Register of European Patents

EP About this file: EP0047953

EP0047953 - Semipermeable composite membranes comprising modified polyvinyl alcohol, process for their preparation and their use [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.07.1985
Database last updated on 24.04.2024
Most recent event   Tooltip09.07.1985No opposition filed within time limitpublished on 11.09.1985 [1985/37]
Applicant(s)For all designated states
ALIGENA AG
Freie Strasse 103
CH-4051 Basel / CH
[1982/12]
Inventor(s)01 / Linder, Charles, Dr.
20 Derech Yavneh
Rehovot / IL
02 / Perry, Mordechai, Dr.
32 Sokolov Street
Petach Tikvah / IL
03 / Kotraro, Reuven
11 Derech Yavneh
Rehovot / IL
[1982/12]
Representative(s)Becher, Pauline, et al
A. Braun, Braun, Héritier, Eschmann AG Postfach 160
CH-4003 Basel / CH
[N/P]
Former [1982/12]Becher, Pauline, Dr., et al
A. Braun, Braun, Héritier, Eschmann AG Postfach 160
CH-4003 Basel / CH
Application number, filing date81107007.707.09.1981
[1982/12]
Priority number, dateCH1980000692516.09.1980         Original published format: CH 692580
[1982/12]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0047953
Date:24.03.1982
Language:DE
[1982/12]
Type: A3 Search report 
No.:EP0047953
Date:12.05.1982
Language:DE
[1982/19]
Type: B1 Patent specification 
No.:EP0047953
Date:15.08.1984
Language:DE
[1984/33]
Search report(s)(Supplementary) European search report - dispatched on:EP10.03.1982
ClassificationIPC:B01D13/04, B01D31/00, B01D13/00
[1982/12]
CPC:
B01D67/0093 (EP); B01D67/00931 (US); B01D71/38 (EP);
B01D71/381 (US); B01D71/383 (US); C08F8/00 (EP,US);
B01D2323/30 (EP,US) (-)
C-Set:
C08F8/00, C08F16/06 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1982/12]
TitleGerman:Modifizierten Polyvinylalkohol enthaltende, semipermeable Kompositmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung[1982/12]
English:Semipermeable composite membranes comprising modified polyvinyl alcohol, process for their preparation and their use[1982/12]
French:Membranes composites semiperméables comprenant de l'alcool polyvinylique modifié, procédé pour leur fabrication et leur application[1982/12]
Examination procedure07.06.1982Examination requested  [1982/33]
17.01.1983Despatch of a communication from the examining division (Time limit: M04)
05.05.1983Reply to a communication from the examining division
09.09.1983Despatch of a communication from the examining division (Time limit: M02)
13.10.1983Reply to a communication from the examining division
09.11.1983Despatch of communication of intention to grant (Approval: )
27.01.1984Communication of intention to grant the patent
05.04.1984Fee for grant paid
05.04.1984Fee for publishing/printing paid
Opposition(s)16.05.1985No opposition filed within time limit [1985/37]
Fees paidRenewal fee
30.07.1983Renewal fee patent year 03
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Documents cited:Search[A]FR2131220  (BUCKMAN LABOR INC);
 [X]US3892665  (STEIGELMANN EDWARD F, et al);
 [X]US3945927  (IMAI SATOSHI, et al);
 [Y]DE2505255  (ALIGENA AG);
 [A]DE2615954  (KURARAY CO);
 [A]FR2371477  (UOP INC [US]);
 [A]EP0010425  (TEIJIN LTD [JP]);
 [P]EP0025973  (ALIGENA AG [CH]);
 [P]EP0026399  (ALIGENA AG [CH])
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.