Fireplace construction with adaptable combustion air inlet
CA 1115159 A · Owner: Preway Inc. · Inventors: Moss, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A prebuilt fireplace construction for installation in a living space includes a housing a firebox, within the housing with an open forward side adapted to be sealed by glass doors, an outlet for combustion gases an inlet for combustion air and has a base structure supporting the housing through which an inlet duct for combustion air extends. One end of the combustion air duct is connected to the combustion air inlet. The other end of the duct may connect to an optionally used air intake conduit so that exterior air may be delivered to the combustion air inlet, or receive air from a room interior which is drawn into the firebox through the base structure. A damper within the duct permits …
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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
- 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.