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Expired Canadian patentCanada

Patient thermal regulation system

CA 2306927 C · Owner: Hill-Rom, Inc. · Inventors: Borders, Richard L.

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

A system (10) for regulating a core body temperature of a person (12) includes a pressure applicator (20) configured to apply negative or cyclical positive pressure to a portion of the person (12) to vasodilate blood vessels of the person (12) within the portion, a heating device (22) configured to supply heat to the portion of the person (12) and a control apparatus (26). The , control apparatus (26) is coupled to the heating device (22) and includes a controller (84) configured to vary the amount of heat supplied by the heating device (22). The amount of heat supplied by the heating device (22) is varied in response to a difference in temperature between a preset temperature …

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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 November 6, 1998 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.
FiledNovember 6, 1998
GrantedJanuary 15, 2002
Term endedNovember 6, 2018
Patent numberCA 2306927 C
Classification (IPC)A61F7/02 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 6, 1998Patent grantedJan 15, 2002Term endedNov 6, 2018

Sources & verification

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