Solar heater roof-panel construction
CA 1092462 A · Owner: Hastwell, Peter J. · Inventors: Hastwell, Peter J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roofing structure in which roofing panels support solar collector plates in cavities in the roofing panels or formed on the roofing panels, above which are shielding panels which pass solar radiation but prevent water flow into the cavities, so that the solar collector plates are positioned between the shielding panels and the roofing panels with the roofing panels being thermally insulated on their undersides to pass back heat which passes through the solar collector plates. 1.
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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 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.