Bi-steel percussive drill rod

Details for Australian Patent Application No. 2009239363 (hide)

Owner Longyear TM, Inc.

Inventors Yao, Jing James

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2009239363

PCT Pub. Number WO2009/132079

Priority 61/047,154 23.04.08 US; 12/427,562 21.04.09 US

Filing date 22 April 2009

Wipo publication date 29 October 2009

Acceptance publication date 6 October 2011

International Classifications

B25D 17/00 (2006.01) Details of, or accessories for, portable power-driven percussive tools

B25D 17/02 (2006.01) Details of, or accessories for, portable power-driven percussive tools

C22C 38/00 (2006.01) Ferrous alloys, e.g. steel alloys

E21B 10/36 (2006.01) Drilling tools - Percussion drill bits

Event Publications

28 October 2010 PCT application entered the National Phase

  PCT publication WO2009/132079 Priority application(s): WO2009/132079

6 October 2011 Application Accepted

  Published as AU-B-2009239363

2 February 2012 Standard Patent Sealed

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