Window lock
CA 2230781 A1 · Owner: Demarco, Giuseppe · Inventors: Demarco, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A locking mechanism used to secure any number of window sashes closed against a window frame includes one or more keepers mounted to the window sash, and a tie bar having thereon a corresponding number of rollers and an , actuator, assembly mounted to the window frame. The actuator assembly is configured to reciprocally move the tie bar and includes a housing and a handle lever and actuator, arm pivotally mounted to the housing. A camming pin is coupled to the handle lever, so that the rotation of the handle lever rotates the camming pin along an arc of a, circle centered on the handle pivot. The pin extends into a slot formed in the actuator, arm remote from an end coupled to the tie …
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 February 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2020.
- 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.