Expired Canadian patentCanada
Burner for maple sap evaporator
CA 1187359 A · Owner: 3870073 Canada Inc. · Inventors: Bosse, Leopold
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wood burner for a maple sap evaporator including a power-operated fan for forcing combustion air through the combustion chamber. A shutter adjusts the air pressure. More uniform heat distribution is obtained under the evaporator vats.
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 May 21, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 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.
FiledAugust 4, 1983
GrantedMay 21, 1985
Term endedMay 21, 2002
Patent numberCA 1187359 A
Classification (IPC)F24B5/00 +2 more
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.