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Expired Canadian patentCanada

Redundant temperature monitoring in electrosurgical systems for safety mitigation

CA 2542849 C · Owner: Gregg, William N. · Inventors: Blaha, Derek M.; Gregg, William N.

CIPO record

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Abstract From the Canadian patent

A redundant temperature monitoring system and method for an electrosurgical system are provided. The temperature monitoring circuit includes at least one temperature sensor for sensing a temperature at a measuring point a first , temperature measurement circuit coupled to the at least one temperature sensor for generating a first temperature value a second temperature measurement , circuit coupled to the at least one temperature sensor for generating a second temperature value, and a control circuit for determining a difference between the first and second temperature values and for comparing the difference to a first predetermined threshold. If the difference is greater than the …

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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 October 23, 2003 and granted August 20, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 23, 2003
GrantedAugust 20, 2013
Term endedOctober 23, 2023
Patent numberCA 2542849 C
Classification (IPC)A61B18/12 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 23, 2003Patent grantedAug 20, 2013Term endedOct 23, 2023

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