Solar collector comprising an elongate dewar vessel
CA 1065717 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Horster, Horst; Mahdjuri, Faramarz; Kersten, Reinhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solar collector comprising an elongate element which projects into a Dewar vessel in order to form a supply duct and an outlet duct for heat transport medium the sum of the cross-sectional areas of the ducts being smaller than one quarter of the inner cross-sectional area of the vessel.
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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
- 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.