Electronic Purification of Air in Tunnels

Details for Australian Patent Application No. 2003204138 (hide)

Owner Cravero, H.

Inventors Cravero, Humberto Alexander

Agent Spruson & Ferguson

Pub. Number AU-A-2003204138

Filing date 7 May 2003

Wipo publication date 25 November 2004

International Classifications

E21F 001/00 Ventilation of mines or tunnels

H01T 023/00 Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere

Event Publications

29 May 2003 Complete Application Filed

25 November 2004 Application Open to Public Inspection

  Published as AU-A-2003204138

9 December 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(e). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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