An appliance monitoring and warning system
CA 2200642 A1 · Owner: Mooney, Joseph A. · Inventors: Mooney, Joseph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monitor and warning system for use with an appliance such as a stove for providing an alarm when the system senses that the appliance has been left on and in an unattended condition for more than a predetermined time interval. The system is designed to be activated when the appliance is sensed as being on such as, having a temperature greater than the ambient temperature. The activated system then continually reacts to the presence of the user to reset a timing device to a start condition. In the event the timing device is allowed to run without being reset for a predetermined time interval, it provides a signal to an alarm section which sounds an alarm or provides other types of warning …
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 March 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 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.