Low profile radiant heating element
CA 2124980 A1 · Owner: Markum, Randall · Inventors: Markum, Randall
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electrical heating apparatus for use in an electric range having a glass/ceramic type cooking top. A pan is mounted beneath the cooking top, and an electrical heating element is installed in the pan. When electrical current is supplied to the element, the heat produced is directed at an underside of the cooking top to uniformly heat a defined area of the top. The heating element is installed on, and attached to a contoured, upper surface of the support. The support is made of a heat reflective material which directs heat radiated by the heating element toward the underside of the top. Spacers space the heating element from the underside of the cooking top. Because the heating element is of …
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 June 2, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2016.
- 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.