Heating device
CA 1192803 A · Owner: Pozel S.A. · Inventors: Zellweger, Conrad; Spreter, Victor C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating device for heating liquid and solid products comprises a container structure and heating means located at the base of the container structure the heating, means comprising a heating element including a supply of exothermic gas-less combustible material. The heating element consists of a flat tile like three-layer element comprising a first heat spreading layer made of heat conducting material, a second, intermediate layer composed of the exothermic gas less combustible material and a third layer, made of heat insulating incombustible material. Ignition means are in operable contact with the combustible material through an opening in at least one of the said first and second layers …
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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 September 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2002.
- 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.