BALL ACTIVATED TOOL FOR USE IN DOWNHOLE DRILLING

Details for Australian Patent Application No. 2002229944 (hide)

Owner ORR, William, McLean LEE, Paul, Bernard

Inventors LEE, Paul, Bernard

Pub. Number AU-A-2002229944

PCT Pub. Number WO2002/068793

Priority 0104380.1 22.02.01 GB

Filing date 11 February 2002

Wipo publication date 12 September 2002

International Classifications

E21B 021/10 Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 021/00 Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 034/14 Valve arrangements for boreholes or wells

Event Publications

6 March 2003 Application Open to Public Inspection

  Published as AU-A-2002229944

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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