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Expired Canadian patentCanada

Method and system for delivering and metering liquid sterilant

CA 2810290 C · Owner: Ethicon, Inc. · Inventors: Guinto, Remigio; Krogh, Ross G.; Nguyen, Nick Ngoc

CIPO record

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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 system and a method for delivering and metering a fixed volume of liquid such as a liquid sterilant from a container into a vaporization system. The method for the delivering system includes the steps of sensing a requirement for additional liquid sterilant determining whether the liquid sterilant to be added is acceptable for use and delivering the liquid sterilant from a container into an accumulator. The method of metering the liquid sterilant into the vaporization system includes creating a vacuum in a chamber connected to the vaporizer and delivering the liquid sterilant into a vaporizer while continually sensing the flow of the delivery. The metering system maintains a slow …

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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 5, 2001 and granted December 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2023.
  • 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 5, 2001
GrantedDecember 17, 2013
Term endedFebruary 5, 2021
Patent numberCA 2810290 C
Classification (IPC)A61L2/26 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedFeb 5, 2001Patent grantedDec 17, 2013Term endedFeb 5, 2021

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