Drill rig

Details for Australian Patent Application No. 2007202380 (hide)

Owner Greyling, R.

Inventors Greyling, Rudolph Theunis

Agent Eagar & Buck

Pub. Number AU-A-2007202380

Priority ZAP2006/3793 12.06.06 ZA

Filing date 25 May 2007

Wipo publication date 3 January 2008

International Classifications

E21B 6/04 (2006.01) Drives for drilling with combined rotary and percussive action

Event Publications

14 June 2007 Complete Application Filed

  Priority application(s): ZAP2006/3793 12.06.06 ZA

3 January 2008 Application Open to Public Inspection

  Published as AU-A-2007202380

28 April 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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