Roof drilling system improvements

Details for Australian Patent Application No. 2006320247 (hide)

Owner Dover BMCS Acquisition Corp.

Inventors Brady, William J.

Agent Davies Collison Cave

Pub. Number AU-B-2006320247

PCT Pub. Number WO2007/065099

Priority 11/553,063 26.10.06 US; 11/289,683 29.11.05 US

Filing date 29 November 2006

Wipo publication date 7 June 2007

Acceptance publication date 16 February 2012

International Classifications

E21B 7/00 (2006.01) Special methods or apparatus for drilling

E21B 10/26 (2006.01) Drilling tools - Drill bits with leading portion, i.e. drill bits with a pilot cutter

E21B 10/58 (2006.01) Drilling tools

Event Publications

3 July 2008 PCT application entered the National Phase

  PCT publication WO2007/065099 Priority application(s): WO2007/065099

16 February 2012 Application Accepted

  Published as AU-B-2006320247

14 June 2012 Standard Patent Sealed

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