An anti-noise pick-up

Details for Australian Patent Application No. 2001233580 (hide)

Owner Cheng, Z.

Inventors Cheng, Ziyi

Agent Griffith Hack

Pub. Number AU-B-2001233580

PCT Pub. Number WO01/63969

Priority 00100775 03.02.00 CN; CN00/00358 24.10.00 WO

Filing date 2 February 2001

Wipo publication date 3 September 2001

Acceptance publication date 11 August 2005

International Classifications

H04R 019/01 Electrostatic transducers

Event Publications

11 August 2005 Application Accepted

  Published as AU-B-2001233580

8 December 2005 Standard Patent Sealed

27 September 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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