Improved road header

Details for Australian Patent Application No. 2003100532 (hide)

Owner John Holland Pty Ltd

Inventors Nancarrow, Adam Cade; Walton, Ernest

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2003100532

Filing date 2 July 2003

Opi date 11 March 2004

International Classifications

E21D 023/00 Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor

Event Publications

17 July 2003 Innovation Patent Application Filed

18 September 2003 Innovation Patent Open to Public Inspection

  Published as AU-B-2003100532

18 September 2003 Innovation Patent Sealed

11 March 2004 Certified Innovation Patents

  Published as AU-B-2003100532

14 February 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

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

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