METHODS AND APPARATUS FOR REMOVING TRACE IMPURITIES FROM INERT AND NON-REACTIVE GASES AND REACTIVE GASES AND FLUIDS

Details for Australian Patent Application No. 2001294815 (hide)

Owner MATHESON TRI-GAS

Inventors HOULDING, Virginia; FUNKE, Hans, H.; FRAENKEL, Dan

Pub. Number AU-A-2001294815

PCT Pub. Number WO2002/051525

Priority 09/748,734 26.12.00 US; 09/777,741 06.02.01 US

Filing date 27 September 2001

Wipo publication date 8 July 2002

International Classifications

B01D 053/04 Separation of gases or vapours - with stationary adsorbents

Event Publications

23 January 2003 Application Open to Public Inspection

  Published as AU-A-2001294815

5 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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