Fireplace
CA 1069407 A · Owner: Paul Moore Company Limited (The) · Inventors: Conly, William A.; Hansen, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a heater which is connected to the flue of a house. The heater includes a firebox an, intermediate plenum chamber and an outer plenum chamber. Either atmospheric or ambient air is introduced into the heater and lead over the heated surfaces of the two plenum chambers before issuing into the space to be heated.
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.