Portable humidifier
CA 2082470 A1 · Owner: Duracraft Corporation · Inventors: Chiu, Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A humidifier including a base defining a boiler cavity; a liquid supply supported on the base and having a discharge opening communicating with the boiler cavity and adapted to maintain a given level of liquid therein; and an evaporation unit removably mounted on the base and adapted to induce evaporation of liquid contained thereby and a, vapor passage having a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from the cavity. Also included is an electrical supply for supplying electrical energy to the heater; a switch mounted on the evaporation unit and adapted in one condition for deactivating the …
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 November 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2014.
- 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.