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Expired Canadian patentCanada

Systems and methods for respiratory event detection

CA 2522006 C · Owner: Derchak, P. Alexander · Inventors: Sackner, Marvin A.; Inman, Dana Michael; Keenan, Desmond B.

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Abstract From the Canadian patent

The present invention is directed to improved systems and methods for processing respiratory signals derived generally from respiratory plethysmography, and especially from respiratory inductive plethysmographic sensors mounted on a garment for ambulatory recording. The systems and methods provide improved signal filtering for artifact rejection improved calibration , of sensor data to produce outputs indicative of lung volumes. Further this , invention provides improved systems and methods directed to processing lung volume signals, however measured or derived to provide improved determination , of respiratory parameters and improved recognition of selected respiratory events.

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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 April 9, 2004 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 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.
FiledApril 9, 2004
GrantedMay 28, 2013
Term endedApril 9, 2024
Patent numberCA 2522006 C
Classification (IPC)A61B5/08 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 9, 2004Patent grantedMay 28, 2013Term endedApril 9, 2024

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