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Expired Canadian patentCanada

Automated endoscope reprocessor connection integrity testing

CA 2452955 C · Owner: Nguyen, Nick Ngoc · Inventors: Ellis, Cindy L.; Williams, Hal; Nguyen, Nick Ngoc

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 method detects proper connection of fixtures to one or more channels in an endoscope during a cleaning or disinfection procedure. The endoscope has a first opening into one of its channels. The method includes the steps of placing the endoscope at the first opening in a liquid while leaving a gas within the channel drawing a vacuum on the gas through a second opening into the channel and thereby drawing some of the liquid into the channel and detecting for air leaking into the channel.

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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 December 12, 2003 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 2003
GrantedFebruary 7, 2012
Term endedDecember 12, 2023
Patent numberCA 2452955 C
Classification (IPC)G01M3/02 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 12, 2003Patent grantedFeb 7, 2012Term endedDec 12, 2023

Sources & verification

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