IMPROVED MUD MOTOR

Details for Australian Patent Application No. 2002250198 (hide)

Owner BRUSH WELLMAN INC.

Inventors BERTIN, Robert, D.; NIELSEN, William, D., Jr.; RYAN, Dlane, M.

Pub. Number AU-A-2002250198

PCT Pub. Number WO2002/070857

Priority 09/797,336 01.03.01 US

Filing date 1 March 2002

Wipo publication date 19 September 2002

International Classifications

E21B 007/06 Special methods or apparatus for drilling

E21B 047/022 Survey of boreholes or wells

C22C 009/02 Alloys based on copper - with tin as the next major constituent

C22C 009/06 Alloys based on copper - with nickel or cobalt as the next major constituent

Event Publications

13 March 2003 Application Open to Public Inspection

  Published as AU-A-2002250198

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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