Loudspeaker with shaped sound field

Details for Australian Patent Application No. 2003208210 (hide)

Owner Audio Products International Corp.

Inventors Welker, Andrew C; Tchilinguirian, John

Agent Watermark

Pub. Number AU-B-2003208210

PCT Number PCT/CA03/00293

PCT Pub. Number WO2003/075606

Priority 60/361,355 05.03.02 US

Filing date 4 March 2003

Wipo publication date 16 September 2003

Acceptance publication date 21 August 2008

International Classifications

H04R 25/00 (2006.01) Deaf-aid sets

H04R 1/02 (2006.01) Details of transducers - Casings

H04R 1/22 (2006.01) Details of transducers - for obtaining desired frequency characteristic only

H04R 1/28 (2006.01) Details of transducers - Transducer mountings or enclosures designed for specific frequency response

H04R 1/34 (2006.01) Details of transducers

H04R 3/14 (2006.01) Circuits for transducers

Event Publications

17 July 2003 Complete Application Filed

  Priority application(s): 60/361,355 05.03.02 US

23 October 2003 Application Open to Public Inspection

  Published as AU-B-2003208210

18 May 2006 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). 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.

25 May 2006 Corrigenda

  Applications Lapsed, Refused or Withdrawn, Patents Ceased or Expired - 2003 Delete all reference to Application No. 2003208210

21 August 2008 Application Accepted

  Published as AU-B-2003208210

18 December 2008 Standard Patent Sealed

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