Method and apparatus for producing purified or ozone enriched air
CA 2304070 A1 · Owner: Nelson, Jerry · Inventors: Nelson, Jerry; Andrews, Craig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for producing purified or ozone enriched air is accomplished by exposing an incoming air stream from a surrounding area to ultra-violet (UV) radiation to generate ozone in an ozone chamber of the system. The ozone chamber is configured to reduce air through-flow velocity and to provide time for the ozone to mix with the air and oxidize the contaminants. The air stream subsequently enters a germicidal chamber and is exposed to UV radiation at a different wavelength to destroy bacteria and any ozone in the air stream thus resulting in sterilized air. The system may include various ozone and germicidal chamber configurations to increase residence time within …
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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 September 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2020.
- 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.