Liquid driven downhole drilling machine

Details for Australian Patent Application No. 2002354376 (hide)

Owner Wassara AB

Inventors Egerstrom, Fredrik

Agent Watermark

Pub. Number AU-B-2002354376

PCT Number PCT/SE02/02105

PCT Pub. Number WO2003/064805

Priority 0104217-5 14.12.01 SE

Filing date 20 November 2002

Wipo publication date 2 September 2003

Acceptance publication date 26 April 2007

International Classifications

E21B 6/08 (2006.01) Drives for drilling with combined rotary and percussive action

Event Publications

20 March 2003 Complete Application Filed

  Priority application(s): 0104217-5 14.12.01 SE

18 September 2003 Application Open to Public Inspection

  Published as AU-B-2002354376

26 April 2007 Application Accepted

  Published as AU-B-2002354376

23 August 2007 Standard Patent Sealed

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