Variable gauge drilling apparatus and method of assembly thereof

Details for Australian Patent Application No. 2004218697 (hide)

Owner Halliburton Energy Services, Inc.

Inventors Maxwell, Terrance Dean; Hay, Richard T.; Garcia, Julio; Restau, Bryan James; Cargill, Edward James; Gil, Nestor Humberto

Agent Davies Collison Cave

Pub. Number AU-B-2004218697

Priority 2,448,723 07.11.03 CA

Filing date 8 October 2004

Wipo publication date 26 May 2005

Acceptance publication date 11 December 2008

International Classifications

E21B 17/10 (2006.01) Drilling rods or pipes

Event Publications

28 October 2004 Complete Application Filed

  Priority application(s): 2,448,723 07.11.03 CA

26 May 2005 Application Open to Public Inspection

  Published as AU-B-2004218697

11 December 2008 Application Accepted

  Published as AU-B-2004218697

9 April 2009 Standard Patent Sealed

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