TRANSDUCERS, AND METHODS OF PRODUCING TRANSDUCERS, WITH CRYOGENICALLY TREATED TRANSDUCER MEMBERS

Details for Australian Patent Application No. 2002232696 (hide)

Owner PIEZO SONA-TOOL CORPORATION

Inventors KOMPANEK, Harry, W.

Pub. Number AU-A-2002232696

PCT Pub. Number WO2002/064943

Priority 09/782,408 12.02.01 US

Filing date 28 December 2001

Wipo publication date 28 August 2002

International Classifications

E21B 043/00 Obtaining fluids from wells

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-A-2002232696

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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