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Extract from the Register of European Patents

EP About this file: EP0089195

EP0089195 - Method of producing grain-oriented silicon steel sheets having excellent magnetic properties [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.09.1988
Database last updated on 11.09.2024
Most recent event   Tooltip20.09.1988No opposition filed within time limitpublished on 09.11.1988 [1988/45]
Applicant(s)For all designated states
KAWASAKI STEEL CORPORATION
1-28, Kitahonmachidori 1-chome Chuo-ku, Kobe-shi
Hyogo 651 / JP
[N/P]
Former [1983/38]For all designated states
KAWASAKI STEEL CORPORATION
1-28, Kitahonmachidori 1-chome
Chuo-ku, Kobe-shi, Hyogo 651 / JP
Inventor(s)01 / Goto, Tomomichi
2-35, Ueno-Dori 1-chome Nada-ku
Kobe City / JP
02 / Iwamoto, Katsuo
122, Sato Heiso-Cho
Kakogawa City / JP
03 / Kobayashi, Yishinori
15. E405, Isoshi 3-chome
Takaerazuka City / JP
04 / Matoba, Isao
1-14, Fukuzumi-Dori 8-Chome Nada-Ku
Kobe City / JP
[1983/38]
Representative(s)Overbury, Richard Douglas, et al
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD / GB
[N/P]
Former [1983/38]Overbury, Richard Douglas, et al
HASELTINE LAKE & CO Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date83301350.111.03.1983
[1983/38]
Priority number, dateJP1982003955715.03.1982         Original published format: JP 3955782
[1983/38]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0089195
Date:21.09.1983
Language:EN
[1983/38]
Type: B1 Patent specification 
No.:EP0089195
Date:25.11.1987
Language:EN
[1987/48]
Search report(s)(Supplementary) European search report - dispatched on:EP11.07.1983
ClassificationIPC:C21D8/12, C22C38/02
[1983/38]
CPC:
C21D8/1266 (EP,US); C21D8/1255 (EP,US)
Designated contracting statesDE,   FR,   SE [1983/38]
TitleGerman:Verfahren zur Herstellung von kornorientierten Siliciumstahlblechen mit ausgezeichneten magnetischen Eigenschaften[1983/38]
English:Method of producing grain-oriented silicon steel sheets having excellent magnetic properties[1983/38]
French:Procédé de fabrication de tôles d'acier au silicium à grains orientés et présentant des propriétés magnétiques excellentes[1983/38]
Examination procedure08.03.1984Examination requested  [1984/21]
10.06.1985Despatch of a communication from the examining division (Time limit: M08)
13.02.1986Reply to a communication from the examining division
30.07.1986Despatch of a communication from the examining division (Time limit: M04)
17.11.1986Reply to a communication from the examining division
06.02.1987Despatch of communication of intention to grant (Approval: )
20.05.1987Communication of intention to grant the patent
10.08.1987Fee for grant paid
10.08.1987Fee for publishing/printing paid
Opposition(s)26.08.1988No opposition filed within time limit [1988/45]
Fees paidRenewal fee
04.03.1985Renewal fee patent year 03
05.03.1986Renewal fee patent year 04
05.03.1987Renewal fee patent year 05
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Documents cited:Search[A]JP54029182  ;
 [A]JP56019377  ;
 [A]JP56003892  ;
 [A]JP57145931  ;
 [X]GB999462  (UNITED STATES STEEL CORP);
 [X]GB933873  (UNITED STATES STEEL CORP);
 [X]US3925115  (SALSGIVER JAMES A, et al);
 [A]FR2236009  (NIPPON STEEL CORP [JP]);
 [DL]EP0076109  (KAWASAKI STEEL CO [JP])
 [A]  - DERWENT JAPANESE PATENTS REPORT, section CH, vol. 79, no. 39, October 26, 1979, page M - 2, no. L3-M24, London, GB & JP-A-54 029 182 (NIPPON STEEL CORP. KK) 21.09.1979, & JP54029182 A 00000000
 [A]  - DERWENT JAPANESE PATENTS REPORT, section CH, vol. 81, no. 20, June 21, 1981, page M - 2, no. M24-(M27), London, GB & JP-A-56 019 377 (KAWASAKI STEEL KK) 07.05.1981, & JP56019377 A 00000000
 [A]  - DERWENT JAPANESE PATENTS REPORT, section CH, vol. 81, no. 5, February 27, 1981, page M - 7, no. M24-(M27), London, GB & JP-A-56 003 892 (NIPPON STEEL CORP) 27.01.1981, & JP56003892 A 00000000
 [A]  - DERWENT JAPANESE PATENTS GAZETTE, section CH, week E42, December 1982, page M - 4, no. M24 (88873 E/42), London, GB & JP-A-57 145 931 (KAWASAKI STEEL KK) 09.09.1982, & JP57145931 A 00000000
ExaminationEP0047129
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.