Method of cooling air circulated by a fan and a cooling fan
CA 2254718 A1 · Owner: Duchesne, Kelly · Inventors: Duchesne, Kelly
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and combination apparatus for cooling air circulated by a fan. A first step involves providing a fan having blades and a drive motor which rotates the blades. A protective cage encapsulates the blades thereby preventing, persons or objects from accidentally contacting the blades when they are rotating. A second step involves securing to the protective cage one or more packages of frozen matter. Air circulated by the blades of the fan is cooled as said air passes by the frozen matter.
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 December 1, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.