Braking devices and methods for use in drilling operations

Details for Australian Patent Application No. 2009240632 (hide)

Owner Longyear TM, Inc.

Inventors Drenth, Christopher L.

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2009240632

PCT Pub. Number WO2009/132125

Priority 12/427,586 21.04.09 US; 61/047,029 22.04.08 US

Filing date 22 April 2009

Wipo publication date 29 October 2009

Acceptance publication date 16 August 2012

International Classifications

E21B 23/01 Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

Event Publications

28 October 2010 PCT application entered the National Phase

  PCT publication WO2009/132125 Priority application(s): WO2009/132125

16 August 2012 Application Accepted

  Published as AU-B-2009240632

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