Methods, devices, compositions, and systems for improved scent delivery
CA 2636154 C · Owner: Kaiser, Carl Eric · Inventors: Kaiser, Carl Eric; Readnour, Christine Marie; Woo, Ricky Ah-Man
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Systems, devices, methods, and compositions that improve the scent perception for a user. Improved scent perception is achieved by presenting alternating scents and by varying levels of output of scents as well as by minimizing device clogging thereby improving evaporation profiles.
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 16, 2004 and granted June 10, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.