Switching device for gas operated appliance
CA 2434697 A1 · Owner: Vieira, Manuel · Inventors: Vieira, Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combination timer and controller for a gas-operated appliance such as a, pizza oven, is provided. The combination includes a rotatable control shaft having, a first end connectible to a gas valve and a control knob attachable to a second, end of the control shaft. A timer can be preset to a selected time at which the, control shaft is to be turned from an off position to an on position. An actuator, motor is provided to turn the control shaft to the on position and it is controlled by, the timer so that the motor is turned on by the timer at the selected time. There is, a gear arrangement for connecting the output of the motor to the control shaft and, a coil spring for rotating …
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 July 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2025.
- 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.