Device for simultaneously casing a hole while drilling

Details for Australian Patent Application No. 2003250644 (hide)

Owner Minshull, R. Minshull, B.

Inventors Minshull, Brian Richard; Minshull, Ronald G.

Agent Eagar & Buck

Pub. Number AU-B-2003250644

PCT Number PCT/CA03/01033

PCT Pub. Number WO2004/011764

Priority 60/398,990 29.07.02 US

Filing date 17 July 2003

Wipo publication date 16 February 2004

Acceptance publication date 2 August 2007

International Classifications

E21B 7/20 (2006.01) Special methods or apparatus for drilling - Driving or forcing casings or pipes into boreholes, e.g. sinking

E21B 4/10 (2006.01) Drives for drilling, used in the borehole

Event Publications

16 October 2003 Complete Application Filed

  Priority application(s): 60/398,990 29.07.02 US

25 March 2004 Application Open to Public Inspection

  Published as AU-B-2003250644

2 August 2007 Application Accepted

  Published as AU-B-2003250644

29 November 2007 Standard Patent Sealed

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