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Expired Canadian patentCanada

Graphic user interface for a patient ventilator

CA 2648264 C · Owner: Wallace, Charles L. · Inventors: Butterbrodt, Jay; Ferguson, Howard L.; Sanborn, Warren G.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The invention is directed to a ventilation control system for controlling the ventilation of , a patient. The ventilation control system utilizes a user-friendly user interface for the display of , patient data and ventilator status as well as for entering values for , ventilation settings to be used to control the ventilator.

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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 February 24, 1998 and granted January 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 24, 1998
GrantedJanuary 28, 2014
Term endedFebruary 24, 2018
Patent numberCA 2648264 C
Classification (IPC)A61M16/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 24, 1998Patent grantedJan 28, 2014Term endedFeb 24, 2018

Sources & verification

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