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Expired Canadian patentCanada

Solar heating panel

CA 1069006 A · Owner: Mccurdy, Ronald E. · Inventors: Mccurdy, Ronald E.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This invention relates to an improved solar heating panel for converting solar energy to thermal energy in a circulating fluid to be used for heating or other purposes. A transparent plastic film is secured to a flat dark opaque surface to form a channel therebetween for the circulating fluid. The transparent film which faces the sun is uneven shaped whereby some of the sun's rays which strike the solar panel are reflected to an adjacent portion of the panel. For instance the film may be shaped to form a series of interconnected domes or pyramids, or a number of interconnected semitubular portions. The solar radiation which passes through the transparent film is received by the opaque …

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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 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 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.
Filed—
GrantedJanuary 1, 1980
Term endedJanuary 1, 1997
Patent numberCA 1069006 A
Classification (IPC)F24S10/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 1, 1980Term endedJan 1, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.