Sonic drill head

Details for Australian Patent Application No. 2009303538 (hide)

Owner Longyear TM, Inc.

Inventors Drivdahl, Kristian S.; Able, Robert Eugene; Nevenner, Todd A.; Altrichter, Kenneth Carl

Agent Cotters

Pub. Number AU-B-2009303538

PCT Pub. Number WO2010/045205

Priority 12/250,894 14.10.08 US

Filing date 13 October 2009

Wipo publication date 22 April 2010

Acceptance publication date 12 July 2012

International Classifications

E21B 7/24 Special methods or apparatus for drilling

Event Publications

12 May 2011 PCT application entered the National Phase

  PCT publication WO2010/045205 Priority application(s): WO2010/045205

12 July 2012 Application Accepted

  Published as AU-B-2009303538

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