Core lifter

Details for Australian Patent Application No. 2010315341 (hide)

Owner Longyear TM, Inc.

Inventors Drenth, Christopher L.; Zhang, Hongyan

Agent Cotters

Pub. Number AU-A-2010315341

PCT Pub. Number WO2011/056809

Priority 61/257,599 03.11.09 US; 12/917,774 02.11.10 US

Filing date 3 November 2010

Wipo publication date 12 May 2011

International Classifications

E21B 17/00 (2006.01) Drilling rods or pipes

E21B 25/04 (2006.01) Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors

Event Publications

24 May 2012 PCT application entered the National Phase

  PCT publication WO2011/056809 Priority application(s): WO2011/056809

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