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Expired Canadian patentCanada

Method and apparatus for non-rebreathing positive airway pressure ventilation

CA 2578246 C · Owner: Zarychta, Jaroslaw · Inventors: Zarychta, Jaroslaw

CIPO record

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

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Abstract From the Canadian patent

Apparatus for ventilating a patient in which a fluid is provided to a patient during an exhalation/quiescent phase, in which a pressure a flow, or a volume , of fluid is provided at a baseline level. The flow of fluid from such a patient is released during a release phase following the exhalation/quiescent phase, by decreasing the pressure, flow or volume of fluid from the baseline , level to a release level below the baseline level. The pressure flow, or , volume of fluid during a delivery phase following the release phase is increased from the release level to a peak level that is above the baseline level. Finally, the pressure, flow, or volume of fluid is allowed to return from 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 July 14, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 14, 2005
GrantedSeptember 17, 2013
Term endedJuly 14, 2025
Patent numberCA 2578246 C
Classification (IPC)A61M11/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 14, 2005Patent grantedSep 17, 2013Term endedJuly 14, 2025

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