Sloped window with insulating shade
CA 1289010 C · Owner: Dube, Marcel · Inventors: Dube, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A double-glazed window apparatus for use at a sloped angle is disclosed having an insulating roller shade assembly extendable between the glazings in a U-shaped loop for insulating or shading. The apparatus includes supports for holding the sheet in spaced relation to the glazings and maintaining defined air spaces for insulation. A lower portion of the sheet is supported by stationary supports while an upper portion is supported by cross bars attached to the sheet and riding on slideways along both side edges thereof.
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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.