High productivity core drilling system

Details for Australian Patent Application No. 2008222974 (hide)

Owner Boart Longyear

Inventors Drenth, Chris

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2008222974

PCT Pub. Number WO2008/109522

Priority 60/892,848 03.03.07 US

Filing date 3 March 2008

Wipo publication date 12 September 2008

Acceptance publication date 17 February 2011

International Classifications

E21B 1/00 (2006.01) Methods or apparatus for drilling

E21B 10/00 (2006.01) Drilling tools

Event Publications

24 September 2009 PCT application entered the National Phase

  PCT publication WO2008/109522 Priority application(s): WO2008/109522

8 October 2009 Alteration of Name

  The name of the applicant has been altered to Boart Longyear

17 February 2011 Application Accepted

  Published as AU-B-2008222974

16 June 2011 Standard Patent Sealed

22 March 2012 Assignment Registered

  Boart Longyear The patent has been assigned to Longyear TM, Inc.

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