SONIC DRILL HEAD

Details for Australian Patent Application No. 2002244190 (hide)

Owner DIEDRICH DRILL, INC.

Inventors LANGE, James, E.; SMITH, Brian

Pub. Number AU-A-2002244190

PCT Pub. Number WO2002/068789

Priority 60/271,459 26.02.01 US

Filing date 26 February 2002

Wipo publication date 12 September 2002

International Classifications

E21B 007/24 Special methods or apparatus for drilling

Event Publications

6 March 2003 Application Open to Public Inspection

  Published as AU-A-2002244190

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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