Heating boiler
CA 1084364 A · Owner: Parca Norrahammar Ab · Inventors: Aslund, Borje; Strom, Janeric; Larsson, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heating boiler with a combustion chamber between a front a rear wall and a convection part in each one of the side walls, a flue system composed of parallel flues of substantially circular cross-section arranged vertically in different cross-section arranged vertically the boiler with at least two flues in each side wall in one and the same cross sectional plane, forming upwards or downwards passages for flue gases.
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 August 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 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.