Humidifier
CA 2044206 C · Owner: Hand, Joseph M. · Inventors: Hand, Joseph M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A humidifier comprising a trough adapted to contain water, a wicking assembly having a lower end located in the trough and including a plurality of wick portions each including a generally planar strip of wicking material having an end, and a pleated strip of wicking material secured to the planar strip, and a frame for supporting the wick portions in generally parallel, side-by-side relation the frame including, a first frame member extending generally perpendicular to the planar strips and adjacent the ends of the planar strips and having therethrough a slot elongated in a direction generally perpendicular to the planar strips, and an adhesive extending into the slot and adhering to 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 June 10, 1991 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2013.
- 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.