Capacitor based force sensor

Details for Australian Patent Application No. 2004242072 (hide)

Owner 3M Innovative Properties Company

Inventors Weaver, Billy L.; Kamrath, Robert F.; Hamerly, Michael E.

Agent Davies Collison Cave

Pub. Number AU-A-2004242072

PCT Pub. Number WO2004/104537

Priority 10/439,447 16.05.03 US

Filing date 20 April 2004

Wipo publication date 2 December 2004

International Classifications

G01L 1/14 (2006.01) Measuring force or stress, in general - by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators

Event Publications

15 December 2005 PCT application entered the National Phase

  PCT publication WO2004/104537 Priority application(s): WO2004/104537

27 September 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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