Latch drive assembly
CA 2251963 A1 · Owner: Fortune, Geoffrey James · Inventors: Fortune, Geoffrey James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A latch drive set includes a rotatable drive member (40) having means (50 53) , for engaging the drive member with spindle for rotating the spindle about an , axis to operate a latch unit and a mounting plate (20) for rotatably supporting the drive member with respect to the latch unit so that the drive member (40) at least partly overlies the mounting plate (20) in the direction of the axis. Means (81, 83) is provided on the drive member for coupling the drive member to a handle unit in an annular zone extending about the axis so that the handle unit at least partly overlies the drive member in the direction of the axis when so coupled. In situ rotation of the handle unit is , …
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 May 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2019.
- 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.