Tractor with improved valve system

Details for Australian Patent Application No. 2002230623 (hide)

Owner Western Well Tool, Inc.

Inventors Moore, Norman Bruce; Levay, Robert; Bloom, Duane

Agent Davies Collison Cave

Pub. Number AU-B-2002230623

PCT Pub. Number WO02/44509

Priority 60/250,847 01.12.00 US

Filing date 3 December 2001

Wipo publication date 11 June 2002

Acceptance publication date 29 March 2007

International Classifications

E21B 23/00 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 23/04 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

Event Publications

29 March 2007 Application Accepted

  Published as AU-B-2002230623

2 August 2007 Standard Patent Sealed

23 June 2011 Alteration of Name

  The name of the patentee has been altered to WWT International Inc. 2003

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