Extract from the Register of European Patents

EP About this file: EP0273835

EP0273835 - Metallothermal process for the manufacture of pure alloys based on rare earth metals and transition metals [Right-click to bookmark this link]
Former [1988/27]Metallothermal process for the manufacture of pure alloys based on rare earth metals and transistor metals
[1991/25]
StatusNo opposition filed within time limit
Status updated on  23.04.1992
Database last updated on 09.04.2026
Most recent event   Tooltip23.04.1992No opposition filed within time limitpublished on 10.06.1992 [1992/24]
Applicant(s)For all designated states
COMURHEX Société pour la Conversion de l'Uranium en Métal et Hexafluorure
Tour Manhattan La Défense 2 6, place de l'Iris
F-92400 Courbevoie / FR
[N/P]
Former [1988/27]For all designated states
COMURHEX Société pour la Conversion de l'Uranium en Métal et Hexafluorure
Tour Manhattan La Défense 2 6, place de l'Iris
F-92400 Courbevoie / FR
Inventor(s)01 / Jourdan, Alex
17, rue Washington
F-11100 Narbonne / FR
[1991/25]
Former [1988/27]01 / Jourdan, Alex
16, rue Washington
F-11100 Narbonne / FR
Representative(s)Séraphin, Léon, et al
PECHINEY Immeuble "SIS" 217, cours Lafayette
69451 Lyon Cedex 06 / FR
[N/P]
Former [1988/27]Séraphin, Léon, et al
PECHINEY 28, rue de Bonnel
F-69433 Lyon Cedex 03 / FR
Application number, filing date87420319.326.11.1987
[1988/27]
Priority number, dateFR1986001694827.11.1986         Original published format: FR 8616948
[1988/27]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0273835
Date:06.07.1988
Language:FR
[1988/27]
Type: B1 Patent specification 
No.:EP0273835
Date:19.06.1991
Language:FR
[1991/25]
Search report(s)(Supplementary) European search report - dispatched on:EP04.05.1988
ClassificationIPC:C22C33/00, C22C28/00
[1988/27]
CPC:
C22C28/00 (EP,US); C22C33/003 (EP,US)
Designated contracting statesDE,   GB [1988/27]
TitleGerman:Metallothermisches Verfahren zur Herstellung reiner Legierungen auf der Basis von seltenen Erdmetallen und Übergangsmetallen[1988/27]
English:Metallothermal process for the manufacture of pure alloys based on rare earth metals and transition metals[1991/25]
French:Procédé d'élaboration par métallothermie d'alliages purs à base de terres rares et de métaux de transition[1988/27]
Former [1988/27]Metallothermal process for the manufacture of pure alloys based on rare earth metals and transistor metals
File destroyed:12.06.1999
Examination procedure20.07.1988Examination requested  [1988/37]
08.02.1990Despatch of a communication from the examining division (Time limit: M04)
07.05.1990Reply to a communication from the examining division
06.08.1990Despatch of communication of intention to grant (Approval: No)
18.09.1990Despatch of communication of intention to grant (Approval: later approval)
24.09.1990Communication of intention to grant the patent
26.11.1990Fee for grant paid
26.11.1990Fee for publishing/printing paid
Opposition(s)20.03.1992No opposition filed within time limit [1992/24]
Fees paidRenewal fee
10.10.1989Renewal fee patent year 03
11.10.1990Renewal fee patent year 04
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Cited inExamination  Thesaurus of Aluminium Technology, July 1972
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