Innovative gas monitoring with spacial and temporal analysis
CA 2476902 C · Owner: Airdar Inc. · Inventors: Prince, Dennis S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to the monitoring of gas concentrations possible in very low ranges , (i.e. low ppb and even ppt ranges) and especially use thereof in environmental monitoring, exposure assessment bomb detection, and health studies. The invention can use a spatial and , temporal assessment of gas concentrations that enables the sources of the gas in question to be , located and identified which is useful in environmental and health field but can also be applied to , other fields an example of which is detecting and locating explosives. This technology can uses , small, light weight and low power components that allow for the monitor to be portable and , even worn on a …
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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 August 19, 2004 and granted April 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.