Sonic drill

Details for Australian Patent Application No. 2003281473 (hide)

Owner Bantry Limited

Inventors Johnson, Garrick Ross

Agent Peter Maxwell & Associates

Pub. Number AU-B-2003281473

PCT Number PCT/NZ2003/0001

PCT Pub. Number WO2004/009298

Priority 516798 24.07.02 NZ

Filing date 23 July 2003

Wipo publication date 9 February 2004

Acceptance publication date 8 May 2008

International Classifications

E21B 7/24 (2006.01) Special methods or apparatus for drilling

B25D 9/18 (2006.01) Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously

E21B 1/24 (2006.01) Methods or apparatus for drilling

E21B 1/26 (2006.01) Methods or apparatus for drilling

E21B 1/30 (2006.01) Methods or apparatus for drilling

Event Publications

4 March 2004 Complete Application Filed

  Priority application(s): 516798 24.07.02 NZ

18 March 2004 Application Open to Public Inspection

  Published as AU-B-2003281473

8 May 2008 Application Accepted

  Published as AU-B-2003281473

4 September 2008 Standard Patent Sealed

16 February 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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