Controllable electric heater
CA 1310055 C · Owner: Crossley, Peter W. · Inventors: Crossley, Peter W.; Worrall, Peter W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to controllable electric heaters, in particular heaters employing tungsten halogen lamps and suitable for use in cookers of the type having a ceramic hob below which are placed the heaters. It is an object of the present invention to provide a controllable electric heater employing two tungsten halogen lamps and other components of an inexpensive nature and which allows six different power O settings to be obtained.
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
- Granted November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
- 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.