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Extract from the Register of European Patents

EP About this file: EP0071351

EP0071351 - A transferred-arc plasma reactor for chemical and metallurgical applications [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  21.08.1986
Database last updated on 19.07.2024
Most recent event   Tooltip30.10.2009Change - representativepublished on 02.12.2009  [2009/49]
Applicant(s)For all designated states
HYDRO-QUEBEC
75, West Dorchester Boulevard
Montreal
Québec H2Z 1A4 / CA
[N/P]
Former [1985/15]For all designated states
HYDRO-QUEBEC
75, West Dorchester Boulevard
Montreal, Québec H2Z 1A4 / CA
Former [1984/30]For all designated states
HYDRO-QUEBEC
75, Boulevard Dorchester Ouest
Montréal Québec H2Z 1A4 / CA
Former [1983/06]For all designated states
NORANDA MINES LIMITED
P.O. Box 45 Suite 4500 Commerce Court West
Toronto Ontario, M5L 1B6 / CA
Inventor(s)01 / Gauvin, William H.
7 Harrow Place
Beaconsfield Quebec, H9W 5C7 / CA
02 / Kubanek, George R.
86 St.Andrews Road
Baie d'Urfe Quebec, H9X 2V1 / CA
[1983/06]
Representative(s)Eyles, Christopher Thomas, et al
W.P. Thompson & Co.
55 Drury Lane
London WC2B 5SQ / GB
[N/P]
Former [2009/49]Eyles, Christopher Thomas, et al
W.P. Thompson & Co. 55 Drury Lane
London WC2B 5SQ / GB
Former [1983/06]Eyles, Christopher Thomas, et al
BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road
London, EC1R 0DS / GB
Application number, filing date82303564.707.07.1982
[1983/06]
Priority number, dateCA1981038288930.07.1981         Original published format: CA 382889
[1983/06]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0071351
Date:09.02.1983
Language:EN
[1983/06]
Type: B1 Patent specification 
No.:EP0071351
Date:23.10.1985
Language:EN
[1985/43]
Search report(s)(Supplementary) European search report - dispatched on:EP15.12.1982
ClassificationIPC:C22B4/00, H05H1/34, H05H1/42
[1983/06]
CPC:
H05H1/341 (EP,US); B01J19/088 (EP,US); C22B4/005 (EP,US);
H05H1/3421 (EP,US); H05H1/3436 (EP,US); H05H1/42 (EP,US)
Designated contracting statesBE,   DE,   FR,   GB,   IT,   SE [1983/06]
TitleGerman:Plasmareaktor mit übertragendem Lichtbogen zur chemischen und metallurgischen Verwendung[1983/06]
English:A transferred-arc plasma reactor for chemical and metallurgical applications[1983/06]
French:Réacteur plasmatique à arc transféré pour applications chimiques et métallurgiques[1983/06]
Examination procedure01.08.1983Examination requested  [1983/41]
22.11.1984Despatch of communication of intention to grant (Approval: )
16.02.1985Communication of intention to grant the patent
01.03.1985Fee for grant paid
01.03.1985Fee for publishing/printing paid
Opposition(s)24.07.1986No opposition filed within time limit [1986/41]
Fees paidRenewal fee
15.06.1984Renewal fee patent year 03
03.07.1985Renewal fee patent year 04
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Documents cited:Search[A]US2906858  (MORTON JR HAROLD S);
 [AD]US3856918  (SKRIVAN J, et al);
 [AD]US3932171  (TYLKO JOZEF KAZIMIERZ);
 [AD]US4002466  (MACRAE DONALD R, et al);
 [A]US4099958  (MACRAE DONALD R, et al);
 [AD]GB2041710  (BETHLEHEM STEEL CORP)
Examination   - JOURNAL OF METALS, vol.33, no.1, January 1981, Warrendale, Penn. (US) W.H. GAUVIN et al.: "The plasma production of ferromolybdenum-Process development and economics", pages 42 to 46
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.