A photovoltaic system using reflected solar rays of the surroundings and methods therefor, to dispose of snow, frost and ice
CA 2123752 C · Owner: Bergevin, Benoit · Inventors: Hosatte, Pierre; Bergevin, Benoit; Vallieres, Normand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a photovoltaic system comprising a casing having mounted therein a plurality of solar cells. The casing has a front and opposite thereto, a rear. The front of the casing is provided with a light-transmitting panel for transmitting solar light to the solar cells. The rear is a double wall. A first wall is in contact with the back of the solar cells and on its side away from, the solar cells is of a dark-opaque colour heat-absorbing surface. The second wall is a light-transmitting enclosure of the dark-opaque colour side of the first wall, but spaced therefrom so as to produce a greenhouse effect. A method to remove snow frost and ice over a, photovoltaic system …
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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 May 17, 1994 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2016.
- 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.