Air actuated downthe -hole hammer and drill bit and foot valve for use in the hammer

Details for Australian Patent Application No. 2007309755 (hide)

International Classifications

Event Publications

14 May 2009 PCT application entered the National Phase

PCT publication WO2008/051132 Priority application(s): WO2008/051132

15 September 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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