Solar collector
CA 1069406 A · Owner: Bottum, Edward W. · Inventors: Bottum, Edward W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solar collector of the type used to convert the sun's light rays into heat energy is provided. The solar collector includes a steel plate to absorb the sun's rays. A flat coil of tubular steel is attached to the steel plate by means of the hydrogen brazing process. The surfaces of the steel plate and the tubular coil are preferably coated with a thin layer of copper to form a selective surface to promote the efficient collection of energy.
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.