Canadian application, no grantCanada
Gas sensors with improved resistance to humidity interference
CA 2406113 A1 · Owner: Capteur Sensors And Analysers Limited · Inventors: Pratt, Keith Francis Edwin; Smith, Peter John; Niemeyer, Dirk
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Semiconductor gas-sensitive materials of the formula Cr2-xTixO3 where 0.05 > x >= 0.0001, and gas sensors formed therefrom.
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 May 9, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2023.
- 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 9, 2001
GrantedNo grant recorded
Term endedMay 9, 2021
Patent numberCA 2406113 A1
Classification (IPC)G01N27/12 +1 more
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.