DOUBLE-ACTING RECIPROCATING DOWNHOLE PUMP

Details for Australian Patent Application No. 2002302832 (hide)

Owner WEATHERFORD/LAMB, INC.

Inventors HOWARD, William, F

Pub. Number AU-A-2002302832

PCT Number PCT/GB02/02769

PCT Pub. Number WO2002/101241

Priority 60/298,161 13.06.01 US

Filing date 13 June 2002

Wipo publication date 23 December 2002

International Classifications

F04B 047/06 Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps

F04B 047/02 Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps

F04B 017/04 Pumps characterised by combination with, or adaptation to, specific driving engines or motors

F04B 011/00 Equalisation of pulses, e.g. by use of air vessels

F04B 047/14 Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps

Event Publications

12 December 2002 Complete Application Filed

  Priority application(s): 60/298,161 13.06.01 US

15 May 2003 Application Open to Public Inspection

  Published as AU-A-2002302832

11 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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