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Expired Canadian patentCanada

Combined cardiotomy and venous reservoir

CA 2248947 C · Owner: Minntech Corporation · Inventors: Strom, James; Bach, Ulf-Eiel F.

CIPO record

Overview

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

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Abstract From the Canadian patent

A combined venous and cardiotomy blood reservoir (10) is provided that includes a rigid shell (12) having a top (14) a bottom (16), and a continuous , side wall (18). The top and bottom walls (14 16) are connected to the , continuous side walls (18) so as to define a reservoir (10) for venous and cardiotomy blood. A double column structure (20 24) is provided within the , blood reservoir (10) the first column (20) for receiving the degassing venous blood and the second column (24) for receiving filtering and defoaming , cardiotomy blood.

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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 January 21, 1997 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 21, 1997
GrantedMarch 27, 2001
Term endedJanuary 21, 2017
Patent numberCA 2248947 C
Classification (IPC)A61M1/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 21, 1997Patent grantedMarch 27, 2001Term endedJan 21, 2017

Sources & verification

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