Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberEP0175924 A1
Publication typeApplication
Application numberEP19850110495
Publication dateApr 2, 1986
Filing dateAug 21, 1985
Priority dateSep 22, 1984
Also published asCA1234989A, CA1234989A1, DE3434894A1, DE3434894C2, EP0175924B1, US4604138
Publication number1985110495, 85110495, 85110495.10, EP 0175924 A1, EP 0175924A1, EP-A1-0175924, EP0175924 A1, EP0175924A1, EP19850110495, EP85110495
InventorsErich Dr. Höffken, Rudolf Dr. Hammer, Wolfram Florin
ApplicantThyssen Stahl Aktiengesellschaft
Export CitationBiBTeX, EndNote, RefMan
External Links: Espacenet, EP Register
Verfahren zum Frischen von Roheisen
EP 0175924 A1
Images(1)
Previous page
Next page
Description  available in German
Claims(2)  available in German
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
DE3318332A1 *May 19, 1983Dec 1, 1983Sumitomo Metal IndVerfahren zur herstellung von stahl mit ultraniedrigem phosphorgehalt
LU66209A1 * Title not available
Non-Patent Citations
Reference
1 *STEEL IN THE USSR, Band 8, Nr. 6, Juni 1978, Seiten 497-501, London, GB; A.N. GLAZOV et al.: "Role of manganese in contemporary basic oxygen steelmaking"
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
WO2003085141A1 *Mar 1, 2003Oct 16, 2003Sms Demag AktiengesellschaftVerfahren und einrichtung zum erzeugen von c-stählen durch frischen von phosphorreichem roheisen im elektrolichtbogen-ofen oder im konverter-gefäss
Classifications
International ClassificationC21C5/32, C21C7/064, C21C5/35, C21C5/34
Cooperative ClassificationC21C5/32, C21C7/064
European ClassificationC21C7/064, C21C5/32
Legal Events
DateCodeEventDescription
Apr 2, 1986AKDesignated contracting states:
Kind code of ref document: A1
Designated state(s): AT BE DE FR GB IT LU NL SE
Jun 4, 198617PRequest for examination filed
Effective date: 19860404
Jul 8, 198717QFirst examination report
Effective date: 19870521
Oct 11, 1988ITFIt: translation for a ep patent filed
Owner name: BARZANO E ZANARDO ROMA S.P.A.
Dec 28, 1988REFCorresponds to:
Ref document number: 39497
Country of ref document: AT
Date of ref document: 19890115
Kind code of ref document: T
Format of ref document f/p: P
Dec 28, 1988AKDesignated contracting states:
Kind code of ref document: B1
Designated state(s): AT BE DE FR GB IT LU NL SE
Jan 25, 1989GBTGb: translation of ep patent filed (gb section 77(6)(a)/1977)
Feb 2, 1989REFCorresponds to:
Ref document number: 3567031
Country of ref document: DE
Date of ref document: 19890202
Format of ref document f/p: P
Mar 24, 1989ETFr: translation filed
Dec 27, 198926NNo opposition filed
Aug 31, 1991ITTAIt: last paid annual fee
Jul 22, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: FR
Payment date: 19920722
Year of fee payment: 08
Jul 27, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: GB
Payment date: 19920727
Year of fee payment: 08
Jul 29, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: LU
Payment date: 19920729
Year of fee payment: 08
Ref country code: SE
Payment date: 19920729
Year of fee payment: 08
Jul 30, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: BE
Payment date: 19920730
Year of fee payment: 08
Ref country code: AT
Payment date: 19920730
Year of fee payment: 08
Aug 31, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: NL
Payment date: 19920831
Year of fee payment: 08
Sep 29, 1992PGFPPostgrant: annual fees paid to national office
Ref country code: DE
Payment date: 19920929
Year of fee payment: 08
Dec 21, 1992EPTALu: last paid annual fee
Aug 21, 1993PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: AT
Effective date: 19930821
Ref country code: LU
Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES
Effective date: 19930821
Ref country code: GB
Effective date: 19930821
Aug 22, 1993PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: SE
Effective date: 19930822
Aug 31, 1993PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: BE
Effective date: 19930831
Feb 28, 1994BEREBe: lapsed
Owner name: THYSSEN STAHL A.G.
Effective date: 19930831
Mar 1, 1994PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: NL
Effective date: 19940301
Apr 18, 1994NLV4Nl: lapsed or anulled due to non-payment of the annual fee
Apr 20, 1994GBPCGb: european patent ceased through non-payment of renewal fee
Effective date: 19930821
Apr 29, 1994PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: FR
Effective date: 19940429
May 3, 1994PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: DE
Effective date: 19940503
Jun 24, 1994REGReference to a national code
Ref country code: FR
Ref legal event code: ST
Jan 31, 1995EUGSe: european patent has lapsed
Ref document number: 85110495.0
Effective date: 19940310
Format of ref document f/p: F