Method and apparatus incorporating air modifying agents
CA 2270131 A1 · Owner: Smith, Nigel Peter · Inventors: Smith, Nigel Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are described for dispersing an air modifying agent (e.g. a fragance) in air. The air modifying agent and an electrolyte are entrained in a gel-based aqueous reservoir (7) which contacts a pair of , electrodes (8 9) wich are +ve and -ve with respect to each other to provide an electrical potential between the electrodes. The electrical potential powers a small motor and fan (13, 14) which disperse the air modifying agent from the surface of the reservoir (7) to the surrounding atmosphere via apertures (16) in a housing (10) of the apparatus. The electrical potential can power additional or alternative electrical devices such as lighting and heating devices, …
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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 October 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2019.
- 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.