Backhead and drill assembly with backhead

Details for Australian Patent Application No. 2006311987 (hide)

Owner Rockmore International, Inc.

Inventors Beccu, Rainer S.

Agent Griffith Hack

Pub. Number AU-B-2006311987

PCT Pub. Number WO2007/056035

Priority 60/733,860 03.11.05 US

Filing date 31 October 2006

Wipo publication date 18 May 2007

Acceptance publication date 10 March 2011

International Classifications

E21B 4/14 (2006.01) Drives for drilling, used in the borehole

E21B 1/38 (2006.01) Methods or apparatus for drilling

Event Publications

12 June 2008 PCT application entered the National Phase

  PCT publication WO2007/056035 Priority application(s): WO2007/056035

10 March 2011 Application Accepted

  Published as AU-B-2006311987

7 July 2011 Standard Patent Sealed

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