Jointed spearhead assembly

Details for Australian Patent Application No. 2009246140 (hide)

Owner Longyear TM, Inc.

Inventors Ibrahim, George; Drenth, Christopher L.; Lachance, Anthony

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2009246140

PCT Pub. Number WO2009/140597

Priority 12/349,431 06.01.09 US; 61/053,953 16.05.08 US

Filing date 15 May 2009

Wipo publication date 19 November 2009

Acceptance publication date 2 February 2012

International Classifications

E21B 23/14 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 25/02 (2006.01) Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors

E21B 25/14 (2006.01) Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors

Event Publications

28 October 2010 PCT application entered the National Phase

  PCT publication WO2009/140597 Priority application(s): WO2009/140597

2 February 2012 Application Accepted

  Published as AU-B-2009246140

31 May 2012 Standard Patent Sealed

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