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Extract from the Register of European Patents

EP About this file: EP0703189

EP0703189 - Method for purifying hydrogen peroxide [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.10.1999
Database last updated on 14.09.2024
Most recent event   Tooltip15.10.1999No opposition filed within time limitpublished on 01.12.1999 [1999/48]
Applicant(s)For all designated states
KEMIRA CHEMICALS OY
P.O. Box 330
00101 Helsinki / FI
[1998/50]
Former [1996/13]For all designated states
KEMIRA CHEMICALS OY
P.O. Box 330
SF-00101 Helsinki / FI
Inventor(s)01 / Turunen, Ilkka
Ohjastie 1 C 2
FI-90540 Oulu / FI
[1996/13]
Representative(s)Dr. Weitzel & Partner
Patent- und Rechtsanwälte mbB
Friedenstrasse 10
89522 Heidenheim / DE
[N/P]
Former [1999/26]Dr. Weitzel & Partner
Friedenstrasse 10
89522 Heidenheim / DE
Former [1996/13]Weitzel, Wolfgang, Dr.-Ing. Patentanwalt
Friedenstrasse 10
D-89522 Heidenheim / DE
Application number, filing date95114090.408.09.1995
[1996/13]
Priority number, dateFI1994000437321.09.1994         Original published format: FI 944373
[1996/13]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0703189
Date:27.03.1996
Language:EN
[1996/13]
Type: B1 Patent specification 
No.:EP0703189
Date:09.12.1998
Language:EN
[1998/50]
Search report(s)(Supplementary) European search report - dispatched on:EP30.01.1996
ClassificationIPC:C01B15/013
[1996/13]
CPC:
B01D11/0407 (EP,US); C01B15/013 (EP,US); Y02P20/54 (EP,US)
Designated contracting statesDE,   FR,   GB,   SE [1996/13]
TitleGerman:Methode zur Reinigung von Wasserstoffperoxid[1996/13]
English:Method for purifying hydrogen peroxide[1996/13]
French:Méthode de purification de péroxyde d'hydrogène[1996/13]
Examination procedure02.07.1996Examination requested  [1996/35]
24.03.1997Despatch of a communication from the examining division (Time limit: M04)
18.07.1997Reply to a communication from the examining division
01.10.1997Despatch of communication of intention to grant (Approval: Yes)
18.02.1998Communication of intention to grant the patent
31.03.1998Fee for grant paid
31.03.1998Fee for publishing/printing paid
Opposition(s)10.09.1999No opposition filed within time limit [1999/48]
Fees paidRenewal fee
18.09.1997Renewal fee patent year 03
29.09.1998Renewal fee patent year 04
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Documents cited:Search[A]FR1412812  (LAPORTE CHEMICAL) [A] 1 * the whole document *
 [A]  - E. J. SHIMSHICK, "Extraction with supercritical CO2", CHEMTECH, pages 374 - 375 [A] 1-3,5,6 * the whole document *
 [A]  - SANG-DO YEO, AYDIN AKGERMAN, "Supercritical extraction of organic mixtures from aqueous solutions", AICHE JOURNAL, vol. 36, no. 11, pages 1743 - 1747 [A] 1,5,6 * the whole document *
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.