Downhole tool

Details for Australian Patent Application No. 2008222456 (hide)

Owner National Oilwell Varco, L.P.

Inventors Russell, Mark; Ollerenshaw, Andrew

Agent Halfords IP

Pub. Number AU-A-2008222456

PCT Pub. Number WO2008/107694

Priority 0704484.5 08.03.07 GB

Filing date 10 March 2008

Wipo publication date 12 September 2008

International Classifications

E21B 10/32 (2006.01) Drilling tools

E21B 17/10 (2006.01) Drilling rods or pipes

Event Publications

10 September 2009 PCT application entered the National Phase

  PCT publication WO2008/107694 Priority application(s): WO2008/107694

15 December 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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