Pre-programmed electronic programmable thermostat
CA 2102372 C · Owner: Barrett, James L. · Inventors: Barrett, James L.; Wong, Yuk Ming; Mehta, Vinay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic programmable thermostat having a plurality of program sets each comprising a plurality of times and a corresponding plurality of temperatures is disclosed. To program the thermostat, the user merely selects a program set and the plurality of times and temperatures corresponding to the selected program set isprogrammed into the thermostat to control the heating and/or cooling systems controlled by the thermostat.
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 3, 1993 and granted August 11, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2015.
- 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.