Solar window air heater
CA 2006971 C · Owner: Mackenzie, John Alexander · Inventors: Mackenzie, John Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solar collector comprising a collector frame surrounding a transparent collector pane the, frame being mounted to the frame of an existing window inside a building, a plurality of narrow heat sinks fixed to opposite sides of the frame containing solar energy absorbing and retaining means, the heat sinks being spaced so as to allow significant amounts of solar illumination incident on the existing window to pass through the collector pane into the building a, lower port passing through the solar collector and located adjacent the bottom of the collector and an upper port passing through the solar collector adjacent the top of the collector, whereby air from the building can pass through …
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 2, 1990 and granted July 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 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.