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Expired Canadian patentCanada

A method for protecting resonating sensors and protected resonating sensors

CA 2535732 C · Owner: Microsense Cardiovascular Systems (1996) Ltd. · Inventors: Kaplan, Shay

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A protected resonating sensor may include at least one resonating sensor unit. Each sensor unit has one or more vibratable members. The protected sensor includes a compliant member that forms part of one or more chambers. A first side of the compliant member may be exposed to a medium in a measurement environment. The sensor unit may be any resonating sensor unit having a resonance frequency that depends on the value of a physical variable in a measurement environment. The protected sensor includes a substantially noncompressible medium disposed within the chamber(s). The substantially noncompressible medium may be a liquid or a gel. When the medium is a liquid the , chamber is …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 4, 2004 and granted July 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 4, 2004
GrantedJuly 30, 2013
Term endedAugust 4, 2024
Patent numberCA 2535732 C
Classification (IPC)G01D5/02 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 4, 2004Patent grantedJuly 30, 2013Term endedAug 4, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.