PCD cutters with enhanced working surfaces adjacent a cavity

Details for Australian Patent Application No. 2007262758 (hide)

Owner ReedHycalog UK Limited

Inventors Griffin, Nigel Dennis; Hughes, Peter Raymond

Agent Griffith Hack

Pub. Number AU-A-2007262758

PCT Pub. Number WO2007/148060

Priority 0612176.8 20.06.06 GB

Filing date 18 June 2007

Wipo publication date 27 December 2007

International Classifications

E21B 10/573 (2006.01) Drilling tools

Event Publications

8 January 2009 PCT application entered the National Phase

  PCT publication WO2007/148060 Priority application(s): WO2007/148060

28 April 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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