Equalizing flapper for high slam rate applications

Details for Australian Patent Application No. 2006203927 (hide)

Owner Baker Hughes Incorporated

Inventors Stratton, Scott; Ives, Jason; McVicker, Van; Williams, Ronald

Agent Freehills

Pub. Number AU-B-2006203927

PCT Pub. Number WO2006/074339

Priority 11/031,585 07.01.05 US

Filing date 6 January 2006

Wipo publication date 13 July 2006

Acceptance publication date 2 June 2011

International Classifications

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

F16K 39/02 (2006.01) Devices for relieving the pressure on the sealing faces

Event Publications

26 July 2007 PCT application entered the National Phase

  PCT publication WO2006/074339 Priority application(s): WO2006/074339

2 June 2011 Application Accepted

  Published as AU-B-2006203927

4 August 2011 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 19 Jul 2011. Address for service in Australia - Freehills Patent & Trade Mark Attorneys Level 43 101 Collins Street Melbourne VIC 3000

24 November 2011 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 19 Jul 2011

1 December 2011 Standard Patent Sealed

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