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Expired Canadian patentCanada

Apparatus and methods for on-line monitoring of fluorinated material in headspace of vial

CA 2437217 C · Owner: Rilling, Allan · Inventors: Rilling, Allan; Castner, James F.; Boudreau, Luc

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Abstract From the Canadian patent

Apparatus and methods for monitoring the presence of an analyte in a closed vial wherein a sample contained within the closed vial is conveyed to an analyzer. The analyzer determines a value of a spectral property dependent on analyte concentration at a position within a headspace formed above the sample within the vial. An indicator is used to compare the measure value of the spectral property with a predetermined limit criteria to determine the presence or absence of the analyte. Vials wherein the presence of the analyte is detected are indicated as product vials whereas vials wherein the presence of the analyte is detected are indicated as rejected vials. The rejected vials are …

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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 1, 2002 and granted June 16, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2024.
  • 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 1, 2002
GrantedJune 16, 2015
Term endedFebruary 1, 2022
Patent numberCA 2437217 C
Classification (IPC)G01N21/35 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 1, 2002Patent grantedJune 16, 2015Term endedFeb 1, 2022

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