Power tong

Details for Australian Patent Application No. 2008201170 (hide)

Owner V-Tech AS

Inventors Halse, Helge-Ruben

Agent Griffith Hack

Pub. Number AU-B-2008201170

Parent 2004293727

Filing date 12 March 2008

Wipo publication date 3 April 2008

Acceptance publication date 26 March 2009

International Classifications

E21B 19/16 (2006.01) Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

Event Publications

3 April 2008 Application Open to Public Inspection

  Published as AU-B-2008201170

3 April 2008 Complete Application Filed

26 March 2009 Application Accepted

  Published as AU-B-2008201170

23 July 2009 Standard Patent Sealed

8 September 2011 Application for Amendment

  The nature of the amendment is: Amend the applicant name from V-Tech AS to Weatherford Rig Systems AS. Address for service in Australia - Fisher Adams Kelly Level 29 12 Creek Street Brisbane QLD 4000

19 January 2012 Alteration of Name

  The name of the patentee has been altered to Weatherford Rig Systems AS

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