Modular direct solar heat window unit
CA 1064348 A · Owner: Arent, Asa S. · Inventors: Arent, Asa S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modular direct solar heat window unit comprising a vertically disposed frame having a lower window unit at the lower end thereof and a pair of upper window units positioned above the lower window unit. A ventilating window unit is provided in the upper end of the frame. The lower window unit comprises a pair of horizontally spaced and vertically disposed window members with each of the upper window units comprising a pair of window members which are disposed at an angle to the vertical. A first panel member is hingedly secured at its lower end about a horizontal axis to the frame at the lower end thereof and is movable from a closed position adjacent the lower window unit to an open …
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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 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.