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Expired Canadian patentCanada

Method and apparatus for anesthetic gas reclamation

CA 2866725 C · Owner: Anesthetic Gas Reclamation, Llc · Inventors: Berry, James M.; Morris, Steve

CIPO record

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Abstract From the Canadian patent

A method and apparatus are disclosed for recovering and separating anesthetic gas components from waste anesthetic gases to be purged from a healthcare facility. The condensation-type anesthetic reclamation method and apparatus comprise one or more of the following preferred embodiments: a low- flow anesthetic gas scavenging unit a frost fractionation process for collecting waste anesthetic gases as frost on the cooling surfaces of a cold trap/fractionator a compressor with at least one compression stage and a self-contained unit requiring minimal interfacing with the utility infrastructure and supplies of the healthcare facility.

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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 May 11, 2006 and granted August 16, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 11, 2006
GrantedAugust 16, 2016
Term endedMay 11, 2026
Patent numberCA 2866725 C
Classification (IPC)A61M16/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 11, 2006Patent grantedAug 16, 2016Term endedMay 11, 2026

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