Surface treated steel plate and method for production thereof

Details for Australian Patent Application No. 2002230097 (hide)

Owner NKK Corporation

Inventors Ooi, Toshihiko; Yamaji, Takafumi; Yoshida, Keiji; Tanaka, Yuichiro; Inagaki, Junichi; Yamashita, Masaaki; Majima, Yasuhiro; Ishida, Nobuyuki; Fukushima, Yuichi; Inoue, Norio; Hori, Shinji

Agent Freehills

Pub. Number AU-B-2002230097

PCT Pub. Number WO2002/061164

Priority 2001-82423 22.03.01 JP; 2001-82445 22.03.01 JP; 2002-9960 18.01.02 JP; 2001-24861 31.01.01 JP; 2001-24869 31.01.01 JP; 2001-26182 01.02.01 JP

Filing date 30 January 2002

Wipo publication date 12 August 2002

Acceptance publication date 26 February 2004

International Classifications

C23C 002/28 Coating by applying the coating material in the molten state - Thermal after-treatment, e.g. treatment in oil bath

C23C 022/24 Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-B-2002230097

26 February 2004 Assignment before Grant

  NKK Corporation The application has been assigned to JFE Steel Corporation

26 February 2004 Application Accepted

  Published as AU-B-2002230097

24 June 2004 Standard Patent Sealed

26 August 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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