Device for heating a liquid by solar energy
CA 1097166 A · Owner: Bergkvist, Lars A. · Inventors: Bergkvist, Lars A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for heating water by means of solar energy The device has heat absorbing metallic members carrying the water. One or more lenses for concentrating the solar energy are located a predetermined distance above the upper surfaces of the heat absorbing members, The lenses each consist of a shell carrying water.
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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
- 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.