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Expired Canadian patentCanada

Automated peritoneal dialysis system with detector for recognition of empty supply reservoir and tubing occlusion

CA 2134207 C · Owner: Kamen, Dean · Inventors: Spencer, Geoffrey P.; Kamen, Dean; Finkelstein, Jeffrey

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

Systems for performing peritoneal dialysis having an improved user interface functions and monitoring capabilities. In one respect the systems discriminate between alarm conditions that require user intervention to correct and alarm conditions that reflect conditions that are anomalies but typically correct themselves with minimum or no user intervention. In another respect. the systems identify occluded liquid flow paths and discriminate whether the flow path is associated with a liquid sauce or a liquid destination.

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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 28, 1994 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2016.
  • 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 28, 1994
GrantedFebruary 20, 2001
Term endedFebruary 28, 2014
Patent numberCA 2134207 C
Classification (IPC)A61M1/28 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 28, 1994Patent grantedFeb 20, 2001Term endedFeb 28, 2014

Sources & verification

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