Catalytic retrofit
CA 1205338 A · Owner: Piontkowski, Carl · Inventors: Piontkowski, Carl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combustor unit for a wood stove comprises a generally T-shaped flue assembly interiorly receiving a combustor having a catalyst to facilitate combustion of exhaust gases. The combustor is pivotal between a combustion position wherein the combustor is positioned across an exhaust passageway to an open position wherein the combustor is substantially removed from the exhaust gas stream and positioned within an access passageway. - 18 -
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 June 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 2003.
- 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.