Photoacoustic gas sensor

Details for Australian Patent Application No. 2005200839 (hide)

Owner Siemens Building Technologies AG

Inventors Steiner, Peter; Pleisch, Rolf

Agent Spruson & Ferguson

Pub. Number AU-A-2005200839

Priority 04005482.7 08.03.04 EP

Filing date 24 February 2005

Wipo publication date 22 September 2005

International Classifications

G01L 013/02 Devices or apparatus for measuring differences of two or more fluid pressure values

G01N 021/17 Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Systems in which incident light is modified in accordance with the properties of the material investigated

G01N 029/02 Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves - Analysing fluids

Event Publications

10 March 2005 Complete Application Filed

  Priority application(s): 04005482.7 08.03.04 EP

22 September 2005 Application Open to Public Inspection

  Published as AU-A-2005200839

29 January 2009 Assignment before Grant

  Siemens Building Technologies AG The application has been assigned to Siemens Aktiengesellschaft

16 September 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). 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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