Method of amplitude modulating a message signal in the audible frequency range onto a carrier signal in the ultrasonic frequency range

Details for Australian Patent Application No. 2006286187 (hide)

International Classifications

Event Publications

17 April 2008 PCT application entered the National Phase

PCT publication WO2007/026305 Priority application(s): WO2007/026305

20 January 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

This application lapsed under section 142(2)(c). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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