Wireless thermostat
CA 2224963 A1 · Owner: Eder, Kenneth Charles · Inventors: Eder, Kenneth Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless controller for controlling the application of electrical power to a temperature modifying load (HVAC) having a wireless thermostat which has a temperature sensor for sensing the ambient temperature and a comparison means for comparing the ambient temperature with a predetermined setpoint temperature. Thecomparison means provides an air signal as a function of the difference between the ambient temperature and the predetermined setpoint temperature. The transmitter transmits the air signal to a control means wherein the control means controls the temperature modifying load (HVAC) in accordance with the air signal. The wireless controller may further comprise a solar cell and a …
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 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2019.
- 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.