Heating system having increased air circulation
CA 2124281 C · Owner: Robinson, Kevin Robert Michael · Inventors: Robinson, Kevin Robert Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating system for heating or cooling a volume of air, such as the air within a room, is disclosed. The heating system includes a heating means which when activated can heat or cool the volume of air and an air circulation means which when activated can circulate the air within the room. The system also comprises a sensor which senses the activation of the heating means and substantially simultaneously sends a control signal to activate the air circulation means. The air circulation means comprises a fan to circulate the air in the room in response to the control signal. The air circulation means also comprises a low voltage relay which responds to short timed pulses.
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 May 25, 1994 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2016.
- 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.