Air conditioner system for building
CA 1248807 A · Owner: Yoshida Kogyo K.K. · Inventors: Kajiki, Minoru; Ikemura, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air conditioner system for a building comprising a heat exchanger unit disposed below a building floor a pair, of juxtaposed air passages disposed within a hollow sill in heat exchange relationship to an internal conduit for a heat transferring medium and communicating with the outside air through the heat exchanger unit, a fresh air outlet defined in a top wall of the sill and communicating with the heat exchanger unit through one of the air passage and, a room air inlet defined in a side wall of the sill and communicating with the heat exchanger unit through the other air passage. The air conditioner system thus constructed is sightly to view and provides an air circulation for better …
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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 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- 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.