Friction hinge with retention finger
CA 2287185 C · Owner: Karfiol, Yury · Inventors: Karfiol, Yury
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A friction hinge is provided, comprising a shaft (1) and a band (3) frictionally wrapped about said shaft, wherein said band is formed with a pair of annular slits (13) for defining a pair of outside annular members (5) and an inside annular finger (15) disposed between said slits said finger being , circularly wrapped about said shaft such that said finger is matingly received within an annular undercut (17) formed along said shaft.
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 April 8, 1998 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.