A FABRY-PEROT SENSING ELEMENT BASED ON A LARGE-DIAMETER OPTICAL WAVEGUIDE

Details for Australian Patent Application No. 2002317272 (hide)

Owner WEATHERFORD/LAMB, INC.

Inventors SIRKIS, James, S.; PUTNAM, Martin, A.; KERSEY, Alan, D.; FERNALD, Mark, R.; BRUCATO, Robert, N.

Pub. Number AU-A-2002317272

PCT Number PCT/GB02/02724

PCT Pub. Number WO2002/103315

Priority 60/298,927 18.06.01 US

Filing date 12 June 2002

Wipo publication date 2 January 2003

International Classifications

G01L 011/02 Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group or

G01D 005/26 Mechanical means for transferring the output of a sensing member - using optical means, i.e. using infra-red, visible or ultra-violet light

G01L 001/24 Measuring force or stress, in general - by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis

Event Publications

9 January 2003 Complete Application Filed

  Priority application(s): 60/298,927 18.06.01 US

15 May 2003 Application Open to Public Inspection

  Published as AU-A-2002317272

11 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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