Solid fuel stove
CA 2008981 C · Owner: Stack, Michael · Inventors: Stack, Michael; Corcoran, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid fuel stove includes a number of features which cooperate to enhance combustion of solid fuel combustion residues, including; air ducting for receiving ambient air, heating the air, and delivering the heated air into the path of the combustion residues; a baffle for restricting the outlet from the combustion chamber but, operable to deflect combustion residues through the outlet when the stove door is open; and a secondary combustion chamber in the flow path of the residues. Fig. 2
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
- Filed January 31, 1990 and granted November 30, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2012.
- 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.