Sliding window
CA 1292912 C · Owner: Viceroy Homes Limited · Inventors: Haas, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sliding window structure comprises glazing frames received in guide channels of a support frame having side members and top and bottom members. Each of the side members and the bottom member of the support frame comprises inner and outer walls interconnected to provide closed interior tubes with pairs of parallel guide walls on said inner walls forming two parallel guide channels. The top frame member also has a tubular construction with pairs of parallel guide walls forming two parallel guide channels. Each glazing frame member also has inner and outer walls connected by side walls to form a tubular section with the outer walls together defining a rectangular perimeter of the glazing …
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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 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.