Extract from the Register of European Patents

EP About this file: EP0083894

EP0083894 - Production of percarboxylic acids [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.01.1986
Database last updated on 08.04.2026
Most recent event   Tooltip23.01.1986No opposition filed within time limitpublished on 12.03.1986 [1986/11]
Applicant(s)For all designated states
ELF ATOCHEM S.A.
4/8, Cours Michelet, La Défense 10 92800 Puteaux
Hauts-de-Seine / FR
[N/P]
Former [1984/31]For all designated states
ELF ATOCHEM S.A.
4 & 8, Cours Michelet La Défense 10
F-92800 Puteaux / FR
Former [1984/14]For all designated states
Société ATOCHEM
12-16, Allée des Vosges
F-92400 Courbevoie / FR
Former [1983/29]For all designated states
P C U K PRODUITS CHIMIQUES UGINE KUHLMANN
Service Propriété Industrielle Tour Manhattan
F-92087 Paris La Défense 2 Cédex 21 / FR
Inventor(s)01 / Pralus, Michèle
3, rue des Gosses
F-69450 Saint-Cyr au Mont d'Or / FR
02 / Lecoq, Jean-Claude
10 A, rue Josserand
F-69630 Chaponost / FR
03 / Schirmann, Jean-Pierre
49, Chemin de la Glacière
F-69600 Oullins / FR
[1985/12]
Former [1983/29]01 / Pralus, Michèle
3, rue des Gosses
F-69450 Saint Cyr au Mont d'Or / FR
02 / Lecoq, Jean-Claude
10 A, rue Josserand
F-69630 Chaponost / FR
03 / Schirmann, Jean-Pierre
49, Chemin de la Glacière
F-69600 Oullins / FR
Representative(s)Rochet, Michel, et al
ELF ATOCHEM S.A.
Département Propriété Industrielle
4-8, Cours Michelet
La Défense 10 - Cedex 42
92091 Paris-La-Défense / FR
[N/P]
Former [1984/42]Rochet, Michel, et al
ELF ATOCHEM S.A. Département Propriété Industrielle 4-8, Cours Michelet La Défense 10 - Cedex 42
F-92091 Paris-La-Défense / FR
Former [1984/14]Rochet, Michel
ATOCHEM Département Propriété Industrielle
F-92091 Paris la Défense 10 Cédex 42 / FR
Application number, filing date82402395.629.12.1982
[1983/29]
Priority number, dateFR1982000040713.01.1982         Original published format: FR 8200407
[1983/29]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0083894
Date:20.07.1983
Language:FR
[1983/29]
Type: B1 Patent specification 
No.:EP0083894
Date:20.03.1985
Language:FR
[1985/12]
Search report(s)(Supplementary) European search report - dispatched on:EP04.05.1983
ClassificationIPC:C07C179/10, C07C178/00
[1983/29]
CPC:
C07C407/00 (EP,US); C07C409/10 (KR); C07C407/003 (EP,US)
C-Set:
C07C407/003, C07C409/26 (US,EP);
C07C407/00, C07C409/26 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1983/29]
TitleGerman:Verfahren zur Darstellung von Percarbonsäuren[1983/29]
English:Production of percarboxylic acids[1983/29]
French:Perfectionnement aux procédés de synthèse des acides percarboxyliques[1983/29]
Examination procedure04.01.1983Examination requested  [1983/29]
02.07.1984Despatch of communication of intention to grant (Approval: )
14.08.1984Communication of intention to grant the patent
10.10.1984Fee for grant paid
10.10.1984Fee for publishing/printing paid
Opposition(s)21.12.1985No opposition filed within time limit [1986/11]
Fees paidRenewal fee
08.12.1984Renewal fee patent year 03
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