Solar heater
CA 1080069 A · Owner: Thiel, Heinz E.P. · Inventors: Thiel, Heinz E.P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solar heater has metal pipes arranged in an array connected to carry liquid which will be heated by heat received from solar radiation transmitted through the pipe walls. The pipes are formed from sheet metal so that their internal and external reflectivity may be controlled. The pipes are provided with a dark exterior on the side which will face the sun.
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 24, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 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.