Spring-operated anti-stall tool

Details for Australian Patent Application No. 2009204316 (hide)

Owner Western Well Tool, Inc.

Inventors Krueger IV, Rudolph Ernst; Mock, Philip Wayne

Agent FB Rice

Pub. Number AU-B-2009204316

PCT Pub. Number WO2009/089188

Priority 61/082,931 23.07.08 US; 61/009,972 03.01.08 US

Filing date 5 January 2009

Wipo publication date 16 July 2009

Acceptance publication date 1 September 2011

International Classifications

E21B 44/00 (2006.01) Automatic control

Event Publications

22 July 2010 PCT application entered the National Phase

  PCT publication WO2009/089188 Priority application(s): WO2009/089188

1 September 2011 Application Accepted

  Published as AU-B-2009204316

12 January 2012 Standard Patent Sealed

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