ELECTRET FILTER AND PROCESS FOR PRODUCING THE SAME

Details for Australian Patent Application No. 2003241748 (hide)

Owner TOYO BOSEKI KABUSHIKI KAISHA

Inventors TOKUDA, Shoji; KITAGAWA, Yoshiyuki

Pub. Number AU-A-2003241748

PCT Number PCT/JP03/06962

PCT Pub. Number WO2003/103801

Priority 2002-165934 06.06.02 JP; 2002-165935 06.06.02 JP

Filing date 2 June 2003

Wipo publication date 22 December 2003

International Classifications

B01D 039/14 Filtering material for liquid or gaseous fluids - Other self-supporting filtering material

D04H 001/58 Kinds or types of non-woven fabrics - by applying, incorporating, or activating chemical or thermoplastic bonding agents, e.g. adhesives

D06M 010/02 Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, magnetic fields

B01D 046/52 Filters or filtering processes specially modified for separating dispersed particles from gases or vapours - Particle separators, e.g. dust precipitators, using filters embodying folded material

Event Publications

11 September 2003 Complete Application Filed

  Priority application(s): 2002-165934 06.06.02 JP; 2002-165935 06.06.02 JP

19 February 2004 Application Open to Public Inspection

  Published as AU-A-2003241748

3 March 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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