Air cleaning method, cleaning apparatus, and mist generator
CA 2087897 A1 · Owner: Shinapex Trading Co. Ltd. · Inventors: Maruyama, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air cleaning apparatus includes a housing having an air inlet and an air outlet, and a mist generator arranged in the housing for generating minute particles of water. The minute water particles are mixed with air by a blower in the housing and the resulting mixture is fed into a space outside the housing through the air outlet. Floating contaminant particles in the outside space is expanded by combining the floating contaminant particles with the minute water particles fed by the blower, and the expanded floating contaminant particles are sucked into the housing through the air inlet by the blower and are seized by a filter provided at the air inlet.
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 January 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2015.
- 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.