A device for detecting components in exhaled air
CA 2217883 C · Owner: Nilsson, Stefan · Inventors: Nilsson, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for detecting one or more components in exhalation air includes a tubular element into whose one end exhalation air is introduced and at whose other end there is attached an absorbent plate which absorbs the component(s) wherein the plate can be detached for determination of the components in a measuring apparatus.
Read the whole patent
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 April 11, 1996 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2018.
- 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.