Closure mechanism with integrated actuator for subsurface valves

Details for Australian Patent Application No. 2002350260 (hide)

Owner Baker Hughes Incorporated

Inventors McMahon, David R; Shaw, Brian; Trott, Doug

Agent Freehills

Pub. Number AU-B-2002350260

PCT Number PCT/US02/37783

PCT Pub. Number WO2003/048517

Priority 60/334,321 30.11.01 US

Filing date 25 November 2002

Wipo publication date 17 June 2003

Acceptance publication date 18 September 2008

International Classifications

E21B 34/10 (2006.01) Valve arrangements for boreholes or wells

E21B 34/00 (2006.01) Valve arrangements for boreholes or wells

Event Publications

20 March 2003 Complete Application Filed

  Priority application(s): 60/334,321 30.11.01 US

21 August 2003 Application Open to Public Inspection

  Published as AU-B-2002350260

18 September 2008 Application Accepted

  Published as AU-B-2002350260

22 January 2009 Standard Patent Sealed

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