Window construction
CA 1290193 C · Owner: Haas, Fred · Inventors: Haas, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window structure adapted to be secured in position together with a second such window structure in side by side disposition in an opening in a building structure comprises a plurality of interconnected generally linear frame members, and engagement means on at least one said frame member adapted to be connected to a generally linear junction strip in turn adapted to be connected to an aligned frame member of a window frame of a second said window structure when said second window structure is disposed in said opening in side by side disposition with said window structure.
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 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 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.