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Extract from the Register of European Patents

EP About this file: EP0688881

EP0688881 - Method for adding traces of sodium to a melt of aluminium or an aluminium alloy [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  18.06.1999
Database last updated on 03.10.2024
Most recent event   Tooltip18.06.1999Refusal of applicationpublished on 04.08.1999 [1999/31]
Applicant(s)For all designated states
"VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK", afgekort "V.I.T.O."
Boeretang 200
2400 Mol / BE
[N/P]
Former [1995/52]For all designated states
"VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK", afgekort "V.I.T.O."
Boeretang 200
B-2400 Mol / BE
Inventor(s)01 / Fray, D. J., Prof.
Evergreen Cottage
Kirk Deighton, Nr Wetherby, LS22 4DZ / GB
02 / Doughty, G., Dr.
20 Cliffe Mount
Leeds, LS6 4DZ / GB
03 / Van Der Poorten, Christian Jean Marie E. C.
Professor Devochtstraat 58
B-2300 Turnhout / BE
04 / Dekeyser, Jacky C.
Schansstraat 11
B-3910 Neerpelt / BE
[1995/52]
Representative(s)Debrabandere, René
Bureau De Rycker nv Arenbergstraat 13
2000 Antwerpen / BE
[N/P]
Former [1995/52]Debrabandere, René
Bureau De Rycker nv Arenbergstraat 13
B-2000 Antwerpen / BE
Application number, filing date95200958.715.04.1995
[1995/52]
Priority number, dateBE1994000048109.05.1994         Original published format: BE 9400481
[1995/52]
Filing languageNL
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0688881
Date:27.12.1995
Language:EN
[1995/52]
Search report(s)(Supplementary) European search report - dispatched on:EP14.09.1995
ClassificationIPC:C22C21/04, C22C1/02, C25C3/24
[1995/52]
CPC:
C25C3/02 (EP); C22C21/04 (EP)
Designated contracting statesDE,   FR,   GB,   NL [1995/52]
TitleGerman:Verfahren zum Zusetzen von Natrium-Spuren zu Aluminium- oder Aluminium-Legierungsschmelzen[1995/52]
English:Method for adding traces of sodium to a melt of aluminium or an aluminium alloy[1995/52]
French:Procédé pour ajouter des traces de sodium dans des bains d'aluminium où alliage d'aluminium en fusion[1995/52]
Examination procedure18.03.1996Examination requested  [1996/21]
10.11.1997Despatch of a communication from the examining division (Time limit: M04)
02.03.1998Reply to a communication from the examining division
02.06.1998Despatch of a communication from the examining division (Time limit: M04)
21.09.1998Reply to a communication from the examining division
01.03.1999Despatch of communication that the application is refused, reason: substantive examination [1999/31]
11.03.1999Application refused, date of legal effect [1999/31]
Fees paidRenewal fee
23.12.1996Renewal fee patent year 03
20.01.1998Renewal fee patent year 04
01.02.1999Renewal fee patent year 05
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Documents cited:Search[DA]EP0497410  (STUDIECENTRUM VOOR KERNENERGIE) [DA] 1-4 * claims 1-6 *;
 [A]EP0446152  (ALUMINIUM PECHINEY)
 [A]  - M.SUN ET AL, "ACTIVITY OF SODIUM IN LIQUID ALUMINIUM", METADEX, ASM/IOM [A] 1 * abstract *
    [ ] - JOURNAL OF CENTRAL-SOUTH INSTITUTE OF MINING AND METALLURGY (CHINA), vol. 23, no. 1, pages 99 - 104
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.