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Extract from the Register of European Patents

EP About this file: EP0037140

EP0037140 - Process for electrolyzing aqueous alkali metal halide solutions using a pervious diaphragm of a hydrophobic polymeric organic material [Right-click to bookmark this link]
Former [1981/40]Pervious diaphragm of a hydrophobic polymeric organic material for use in an electrolysis cell for alkali-halide brines
[1984/26]
StatusNo opposition filed within time limit
Status updated on  29.04.1985
Database last updated on 11.05.2024
Most recent event   Tooltip17.04.2015Change - lapse in a contracting state
State(s) deleted from list of lapses: GB
published on 20.05.2015  [2015/21]
Applicant(s)For all designated states
SOLVAY & Cie (Société Anonyme)
Rue du Prince Albert, 33
1050 Bruxelles / BE
[N/P]
Former [1981/40]For all designated states
SOLVAY & Cie (Société Anonyme)
Rue du Prince Albert, 33
B-1050 Bruxelles / BE
Inventor(s)01 / Indeherbergh, Jean
Avenue de Buzenval, 63
F-92500 Rueil-Malmaison / FR
02 / Nicolas, Edgard
Potaardestraat 23
B-1860 Meise-Eversem / BE
[1981/40]
Representative(s)(deleted)
[1983/17]
Former [1981/40]Eischen, Roland
Solvay & Cie Département de la Propriété Industrielle Rue de Ransbeek 310
B-1120 Bruxelles / BE
Application number, filing date81200298.817.03.1981
[1981/40]
Priority number, dateFR1980000691927.03.1980         Original published format: FR 8006919
[1981/40]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0037140
Date:07.10.1981
Language:FR
[1981/40]
Type: B1 Patent specification 
No.:EP0037140
Date:27.06.1984
Language:FR
[1984/26]
Search report(s)(Supplementary) European search report - dispatched on:EP08.07.1981
ClassificationIPC:C25B13/04, C25B13/08, C25B1/46
[1984/26]
CPC:
C25B13/04 (EP,US)
Former IPC [1981/40]C25B13/04, C25B13/08
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1981/40]
TitleGerman:Verfahren zur Elektrolyse wässriger Alkalihalogenidlösungen mittels eines durchlässigen Diaphragmas aus einem organischen hydrophobischen polymeren Material für eine für die Elektrolyse wässriger Alkalichloridlösungen geeignete Zelle[1984/26]
English:Process for electrolyzing aqueous alkali metal halide solutions using a pervious diaphragm of a hydrophobic polymeric organic material[1984/26]
French:Procédé d'électrolyse de solutions aqueuses d'halogénure de métal alcalin, dans lequel on met en oeuvre un diaphragme perméable en matière polymérique organique hydrophobe[1984/26]
Former [1981/40]Durchlässiges Diaphragma aus einem organischen hydrophobischen polymeren Material für eine für die Elektrolyse wässriger Alkalichloridlösungen geeignete Zelle
Former [1981/40]Pervious diaphragm of a hydrophobic polymeric organic material for use in an electrolysis cell for alkali-halide brines
Former [1981/40]Diaphragme perméable en matière polymérique organique hydrophobe pour cellule d'électrolyse de solutions aqueuses d'halogénure de métal alcalin
Examination procedure29.03.1982Examination requested  [1982/23]
25.11.1982Despatch of a communication from the examining division (Time limit: M04)
18.03.1983Reply to a communication from the examining division
25.10.1983Despatch of communication of intention to grant (Approval: )
14.12.1983Communication of intention to grant the patent
27.02.1984Fee for grant paid
27.02.1984Fee for publishing/printing paid
Opposition(s)28.03.1985No opposition filed within time limit [1985/27]
Fees paidRenewal fee
17.03.1983Renewal fee patent year 03
16.03.1984Renewal fee patent year 04
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Lapses during opposition  TooltipSE27.06.1984
[2015/21]
Former [1986/20]SE27.06.1984
GB17.03.1985
Former [1986/12]SE27.06.1984
Documents cited:SearchJP50064739  [ ];
 FR2009450  [ ] (RHEIN WESTFAEL ELECT WERK AG);
 US3930886  [ ] (MESITI EDWARD C, et al);
 [A]US3989540  (FEUILLADE GEORGES, et al);
 [A]US4007059  (WITHERSPOON ROMEO RICHARD, et al);
 [A]US4173526  (FANG JAMES C [US])
    [ ] - CHEMICAL ABSTRACTS, Vol. 83, 1975, réf.: 182070s, page 188, Columbus, Ohio, US, & JP-A-50 064 739 (TOKYO SHIBAURA ELECTRIC CO. LTD) (02-06-1975), & JP50064739 A 00000000
ExaminationBE833912
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.