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Extract from the Register of European Patents

EP About this file: EP0829545

EP0829545 - Process for making a foaming slag on a stainless steel melt in an electric furnace [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  23.03.2007
Database last updated on 22.04.2025
Most recent event   Tooltip20.07.2007Lapse of the patent in a contracting state
New state(s): IT		published on 22.08.2007  [2007/34]
Applicant(s)For all designated states
UGINE S.A.
Immeuble La Pacific, 11/13, cours Valmy - La Défense 7
92800 Puteaux / FR
For all designated states
UGINE-SAVOIE IMPHY
Avenue Paul Girod
73400 Ugine / FR
[2000/52]
Former [1998/12]For all designated states
USINOR SACILOR Société Anonyme
Immeuble "La Pacific", 11/13 Cours Valmy, La Défense 7
92800 Puteaux / FR
For all designated states
UGINE SAVOIE
Avenue Paul Girod
F-73403 Ugine Cédex / FR
Inventor(s)01 / Guillot, Yves
Les Ratelières Marthod
73400 Ugine / FR
02 / Descaves, Frédéric
92 Boulevard Jean Jaurès
62330 Molinghem / FR
03 / Sollier, Luc
Villar Lurin
73600 Moutiers / FR
04 / Bletton, Olivier
49 Chemin des Cèdres
73400 Ugine / FR
[1998/12]
Representative(s)Plaisant, Sophie Marie, et al
ARCELOR France
Arcelor Research Intellectual Property
5 Rue Luigi Cherubini
93212 La Plaine Saint-Denis Cedex / FR
[N/P]
Former [2007/04]Plaisant, Sophie Marie, et al
ARCELOR France Arcelor Research Intellectual Property 5 rue Luigi Cherubini
93212 La Plaine Saint Denis Cedex / FR
Former [2007/02]Plaisant, Sophie Marie, et al
USINOR Groupe Arcelor Propriété Intellectuelle Immeuble la Pacific 13,cours Valmy
92070 La Défense cédex / FR
Former [2000/52]Ventavoli, Roger, et al
USINOR, Direction Propriété Industrielle, Immeuble "La Pacific", La Défense, 11/13 Cours Valmy, TSA 10001
92070 La Défense / FR
Former [1998/12]Ventavoli, Roger
USINOR, Direction Propriété Industrielle, Immeuble "La Pacific", La Défense, 11/13 Cours Valmy, TSA 10001
92070 La Défense / FR
Application number, filing date97401961.421.08.1997
[1998/12]
Priority number, dateFR1996001112012.09.1996         Original published format: FR 9611120
[1998/12]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0829545
Date:18.03.1998
Language:FR
[1998/12]
Type: B1 Patent specification 
No.:EP0829545
Date:18.07.2001
Language:FR
[2001/29]
Search report(s)(Supplementary) European search report - dispatched on:EP19.12.1997
ClassificationIPC:C21C5/54, C21C5/52
[1998/12]
CPC:
C21C5/5264 (EP,US); C21C5/52 (KR); C21C5/54 (EP,US);
C21C2005/366 (EP,US); C21C2300/02 (EP,US); Y02P10/20 (EP,US);
Y10S75/961 (US) (-)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   NL,   PT,   SE [1998/49]
Former [1998/12]AT,  BE,  CH,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zum Erzeugen einer Schaumschlacke auf einer Rostfrei-Stahlschmelze in einem Elektroofen[1998/12]
English:Process for making a foaming slag on a stainless steel melt in an electric furnace[1998/12]
French:Procédé pour réaliser un laitier moussant au-dessus d'un acier inoxydable en fusion dans un four électrique[1998/12]
Examination procedure18.09.1998Examination requested  [1998/47]
07.12.1999Despatch of a communication from the examining division (Time limit: M04)
16.03.2000Reply to a communication from the examining division
30.03.2000Despatch of a communication from the examining division (Time limit: M04)
03.07.2000Reply to a communication from the examining division
18.09.2000Despatch of communication of intention to grant (Approval: Yes)
03.01.2001Communication of intention to grant the patent
03.03.2001Fee for grant paid
03.03.2001Fee for publishing/printing paid
Opposition(s)Opponent(s)01  18.04.2002    ADMISSIBLE
Praxair, Inc.
39 Old Ridgebury Road
Danbury, Ct. 06810-5113 / US
Opponent's representative
Schwan Schorer & Partner mbB, et al, et al
Patentanwälte
Bauerstraße 22
80796 München / DE
 [N/P]
Former [2002/24]
Opponent(s)01  18.04.2002    ADMISSIBLE
Praxair, Inc.
39 Old Ridgebury Road
Danbury, Ct. 06810-5113 / US
Opponent's representative
Schwan - Schwan - Schorer, et al, et al
Patentanwälte European Patent Attorneys Elfenstrasse 32
81739 München / DE
31.05.2002Invitation to proprietor to file observations on the notice of opposition
14.11.2002Reply of patent proprietor to notice(s) of opposition
03.12.2002Communication of observations of patent proprietor (Time limit: M06)
12.06.2003Reply of parties involved to observations of patent proprietor
10.05.2004Date of oral proceedings
18.06.2004Despatch of minutes of oral proceedings
18.06.2004Despatch of communication that the patent will be revoked
10.01.2007Legal effect of revocation of patent [2007/17]
Appeal following opposition30.08.2004Appeal received No.  T1049/04
28.10.2004Statement of grounds filed
09.01.2007Result of appeal procedure: appeal of the proprietor withdrawn
Fees paidRenewal fee
13.07.1999Renewal fee patent year 03
17.07.2000Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipIE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
AT21.08.2005
FI21.08.2005
GB21.08.2005
IT21.08.2005
ES22.08.2005
SE22.08.2005
BE31.08.2005
LU31.08.2005
DE01.03.2006
FR28.04.2006
[2007/34]
Former [2007/17]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
AT21.08.2005
FI21.08.2005
GB21.08.2005
ES22.08.2005
SE22.08.2005
BE31.08.2005
LU31.08.2005
DE01.03.2006
FR28.04.2006
Former [2006/36]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
AT21.08.2005
FI21.08.2005
SE22.08.2005
BE31.08.2005
DE01.03.2006
Former [2006/34]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
AT21.08.2005
FI21.08.2005
SE22.08.2005
Former [2006/27]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
FI21.08.2005
SE22.08.2005
Former [2006/24]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
FI21.08.2005
Former [2004/51]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
GR19.10.2001
Former [2003/46]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
DK18.10.2001
PT18.10.2001
Former [2003/09]IE18.07.2001
NL18.07.2001
CH31.08.2001
LI31.08.2001
PT18.10.2001
Former [2003/01]IE18.07.2001
CH31.08.2001
LI31.08.2001
PT18.10.2001
Former [2002/48]IE18.07.2001
PT18.10.2001
Former [2002/27]PT18.10.2001
Documents cited:Search[A]JPS531618  ;
 [X]US4528035  (SIMPSON JR WILLIAM B [US], et al) [X] 1,2 * abstract *;
 [X]EP0162679  (METRO MATERIALS CORP [US]) [X] 1,2 * example -; claim - *;
 [X]EP0655508  (SVILUPPO MATERIALI SPA [IT]) [X] 1,2 * abstract *;
 [A]LU88577  (CENTRE RECH METALLURGIQUE [BE]);
 [A]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 78, no. 08, Database accession no. 78-14675A, XP002031889 & JPS531618 A 19780109 (NISSHIN STEEL CO LTD) [A] * abstract *
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.