TUNNEL EXHAUST AIR TREATMENT

Details for Australian Patent Application No. 2003257252 (hide)

Owner HYDER CONSULTING PTY LIMITED

Inventors Walker, Stephen James; Hawkins, David

Agent Molins & Co of Suite **** Street Sydney NSW 2000 Australia

Pub. Number AU-A-2003257252

PCT Number PCT/AU03/01137

PCT Pub. Number WO2004/022918

Priority 2002951255 06.09.02 AU

Filing date 5 September 2003

Wipo publication date 29 March 2004

International Classifications

E21F 001/08 Ventilation of mines or tunnels

E21F 007/00 Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose

B01D 053/92 Separation of gases or vapours - of engine exhaust gases

B01D 053/94 Separation of gases or vapours - by catalytic processes

Event Publications

6 November 2003 Complete Application Filed

  Priority application(s): 2002951255 06.09.02 AU

13 May 2004 Application Open to Public Inspection

  Published as AU-A-2003257252

8 March 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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.

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