Window operator and hinge structure
CA 2012329 C · Owner: Vetter, Gregory J. · Inventors: Vetter, Gregory J.; Tucker, Daniel G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window operator and hinge structure for a casement window which can be simply factory pre-set for positioning of a window in either egress or wash modes, with switching between modes requiring no additional parts or special tools. The structure has a pivoted handle movable between a closed inactive, position flush with a sill cover and rotatable to an inclined, active position. The handle, in its pivoting movement, operates window locking structure and also controls the action of a brake with release, of the brake by raising of the handle to operative position. Motion-transmitting connections between the handle and linkage structure include the brake as well as the clutch, with the clutch …
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
- Filed March 15, 1990 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2012.
- 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.