Piezoelectric microspeaker with corrugated diaphragm

Details for Australian Patent Application No. 2003304673 (hide)

Owner Yi, Seung-Hwan

Inventors Yi, Seung-Hwan

Pub. Number AU-A-2003304673

PCT Number PCT/KR2003/0025

PCT Pub. Number WO2005/053357

Filing date 27 November 2003

Wipo publication date 17 June 2005

International Classifications

H04R 017/00 Piezo-electric transducers

Event Publications

1 September 2005 Application Open to Public Inspection

  Published as AU-A-2003304673

1 September 2005 Complete Application Filed

10 August 2006 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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