GAS OPERATED PUMP FOR HYDROCARBON WELLS

Details for Australian Patent Application No. 2003210585 (hide)

Owner WEATHERFORD/LAMB, INC.

Inventors HOWARD, William, F.; LANE, William

Pub. Number AU-A-2003210585

PCT Number PCT/US03/01744

PCT Pub. Number WO2003/062596

Priority 60/350,673 22.01.02 US

Filing date 22 January 2003

Wipo publication date 2 September 2003

International Classifications

E21B 043/12 Obtaining fluids from wells - Methods or apparatus for controlling the flow of the obtained fluid to or in wells

F04F 001/08 Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped

Event Publications

17 July 2003 Complete Application Filed

  Priority application(s): 60/350,673 22.01.02 US

18 September 2003 Application Open to Public Inspection

  Published as AU-A-2003210585

7 October 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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