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Extract from the Register of European Patents

EP About this file: EP0743370

EP0743370 - Grain oriented electrical steel having high volume resistivity and method for producing same [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  20.06.2008
Database last updated on 03.09.2024
Most recent event   Tooltip20.06.2008Revocation of patentpublished on 23.07.2008  [2008/30]
Applicant(s)For all designated states
ARMCO INC.
705 Curtis Street Middletown
Ohio 45044-3999 / US
[N/P]
Former [1996/47]For all designated states
ARMCO INC.
705 Curtis Street
Middletown, Ohio 45044-3999 / US
Inventor(s)01 / Huppi, Glenn S.
80 Vista Court
Monroe, Ohio 45050 / US
[1996/47]
Representative(s)Beetz & Partner mbB
Patentanwälte
Prinzregentenstraße 54
80538 München / DE
[N/P]
Former [1996/47]Beetz & Partner Patentanwälte
Steinsdorfstrasse 10
80538 München / DE
Application number, filing date96107594.213.05.1996
[1996/47]
Priority number, dateUS1995044245916.05.1995         Original published format: US 442459
[1996/47]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0743370
Date:20.11.1996
Language:EN
[1996/47]
Type: A3 Search report 
No.:EP0743370
Date:01.04.1998
[1998/14]
Type: B1 Patent specification 
No.:EP0743370
Date:21.11.2001
Language:EN
[2001/47]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.1998
ClassificationIPC:C21D8/12
[1996/47]
CPC:
H01F1/14775 (EP,US); C21D8/12 (KR); C21D8/1255 (EP,US);
C21D8/1261 (EP,US); C21D8/1283 (EP,US); C21D9/46 (KR);
C22C38/02 (EP,US); C21D3/04 (EP,US); C21D8/1222 (EP,US);
C21D8/1233 (EP,US); C21D8/1272 (EP,US) (-)
Designated contracting statesDE,   FR,   GB,   IT,   SE [1996/47]
TitleGerman:Kornorientierter Elektrostahl mit erhöhtem elektrischen Durchgangswiderstand und ein Verfahren zur Herstellung desselben[2001/28]
English:Grain oriented electrical steel having high volume resistivity and method for producing same[1996/47]
French:Acier électrique à grains orientés présentant une résistance spécifique élevée et un procédé pour leur production[2001/28]
Former [1996/47]Kornorientierte Elektrobleche mit erhöhtem elektrischen Durchgangswiderstand und ein Verfahren zum Herstellen dieser Bleche
Former [1996/47]Tôles d'acier électrique à grains orientés présentant une résistance spécifique élevée et un procédé pour leur production
Examination procedure21.09.1998Examination requested  [1998/47]
08.06.2000Despatch of a communication from the examining division (Time limit: M04)
13.10.2000Reply to a communication from the examining division
11.12.2000Despatch of communication of intention to grant (Approval: No)
14.05.2001Despatch of communication of intention to grant (Approval: later approval)
28.05.2001Communication of intention to grant the patent
20.08.2001Fee for grant paid
20.08.2001Fee for publishing/printing paid
Opposition(s)Opponent(s)01  21.08.2002  19.08.2003  ADMISSIBLE
ThyssenKrupp Electrical Steel GmbH
Altenberger Strasse 120
45143 Essen / DE
Opponent's representative
Simons, Johannes, et al, et al
Cohausz & Florack
Patent- und Rechtsanwälte
Partnerschaftsgesellschaft mbB
Bleichstraße 14
40211 Düsseldorf / DE
 [N/P]
Former [2002/42]
Opponent(s)01  21.08.2002   
ThyssenKrupp Electrical Steel GmbH
Altenberger Strasse 120
45143 Essen / DE
Opponent's representative
Simons, Johannes, Dipl.-Ing., et al, et al
Cohausz & Florack Patentanwälte Kanzlerstrasse 8 A
40472 Düsseldorf / DE
04.10.2002Invitation to proprietor to file observations on the notice of opposition
06.10.2003Reply of patent proprietor to notice(s) of opposition
06.10.2004Date of oral proceedings
26.10.2004Despatch of minutes of oral proceedings
26.10.2004Despatch of communication that the patent will be revoked
11.01.2008Legal effect of revocation of patent [2008/30]
Appeal following opposition29.12.2004Appeal received No.  T0044/05
04.03.2005Statement of grounds filed
11.01.2008Result of appeal procedure: appeal of the proprietor was rejected
11.01.2008Date of oral proceedings
30.01.2008Minutes of the oral proceedings despatched
Fees paidRenewal fee
22.04.1998Renewal fee patent year 03
23.04.1999Renewal fee patent year 04
25.04.2000Renewal fee patent year 05
20.04.2001Renewal fee patent year 06
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Documents cited:Search[AD]US3986902  (REGITZ LESTER J) [AD] 1,6,10 * claim 1 *;
 [AD]US4596614  (MARDER ARNOLD R [US], et al) [AD] 1,6,10 * claim 1 *;
 [AD]US5250123  (YASHIKI HIROYOSHI [JP], et al) [AD] 1,6,10 * claim 1 *;
 [AD]US4979996  (KOBAYASHI HISASHI [JP], et al) [AD] 1,6,10 * claim 1 *;
 [AD]US4898626  (SCHOEN JERRY W [US], et al) [AD] 1,6,10 * claim 1 *;
 [AD]US3130092  (KOHLER DALE M, et al) [AD] 1,6,10 * claim 1 *;
 [AD]US5346559  (USHIGAMI YOSHIYUKI [JP], et al) [AD] 1,6,10 * claim 1 *;
 [A]EP0390140  (NIPPON STEEL CORP [JP]) [A] 1,6,10 * claim 1 *;
 [A]EP0398114  (NIPPON STEEL CORP [JP]) [A] 1,6,10 * claim 1 *;
 [A]EP0420238  (NIPPON STEEL CORP [JP]) [A] 1,6,10 * claim 1 *;
 [A]EP0535651  (KAWASAKI STEEL CO [JP]) [A] 1,6,10 * claim 1 *
 [AD]  - SADAYORI T ET AL, "DEVELOPMENTS OF GRAIN ORIENTED SI-STEEL SHEETS WITH LOW IRON LOSS", KAWASAKI SEITETSU GIHO, JP, (1989), vol. 21, no. 3, pages 239 - 244, XP000196249 [AD] 1,6,10 * 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.