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Expired Canadian patentCanada

A gas detecting arrangement

CA 2591312 C · Owner: Senseair Ab · Inventors: Martin, Hans Goran Evald

CIPO record

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Abstract From the Canadian patent

The present invention relates to a gas detecting arrangement (1) that comprises , of a gas cell (2), which includes a cavity (2') a gas-cell-related light , source (5), a gas-cell-related light detector (7) and a controlling and computing unit (6) wherein , the unit is adapted for initiating (5a) activation of the light source (5) and also to , evaluate the presence and/or the concentration of the gas and/or gas mixture (G) , enclosed in the cell cavity (2') in response to light-detector-related signals (7a) , received from the light detector (7). The gas cell (2) is structured as a slot and/or a channel (10) in a circuit board (9') , or in a printed circuit board (9) on which …

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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 8, 2005 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2025.
  • 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.
FiledDecember 8, 2005
GrantedNovember 24, 2015
Term endedDecember 8, 2025
Patent numberCA 2591312 C
Classification (IPC)G01N21/59 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 8, 2005Patent grantedNov 24, 2015Term endedDec 8, 2025

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