A ring binder mechanism
CA 2314504 A1 · Owner: Ng, Weng Io · Inventors: Ng, Weng Io
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a ring binder mechanism (10) including an upper casing (12) supporting a pair of pivotable plates (14) to which three pairs of half rings (16) are, mounted, and the plates (14) are pivotable between a first configuration in which the, half rings (16) are closed, and a second configuration in which the half rings (16) are, open, and the ring binder mechanism (10) may be secured to a cover (48) via two, rivets (26), in which the rivet (26) includes an anchor plate (28) from an upper surface, (30) of which a post (34) extends and the post (34) includes an open distal end (36), which is deformed to engage with an upper surface of the upper casing (12) and a, support …
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 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 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.