A window operator
CA 2313402 A1 · Owner: Efstratiou, Robert · Inventors: Moody, Roy Malcolm; Efstratiou, Robert; Boosey, Malcolm David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window operator for moving a window sash in a window frame (F) between open and closed positions. The window operator has a mounting plate (14), an elongate threaded member (16) mounted with the mounting plate (14). A drive handle (11) enables a rotational movement to be applied to the elongate threaded member (16). A threaded element (66) is located on the elongate threaded member (16). A hinge (26) with which a window sash can be mounted is attached to a coupling means (23) moveable in response to movement of the threaded element (66) on the elongate threaded member (16). The hinge (26) has one arm (28) pivotally coupled to the mounting plate (14). Because arms (24 and 25) of the hinge …
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 July 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2022.
- 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.