Hinge conveyor chain
CA 2574631 C · Owner: Rexnord Industries, Llc · Inventors: Schumacher, Jeffrey A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hinge conveyor chain includes at least two link each of the link include a , pin engaging surface for engaging a pin hingedly coupling the at least two links together. A pin hingedly coupling the at least two links includes an outwardly facing surface slidably engaging at least one of the pin engaging surfaces of the surfaces of the at least two links. One of the outwardly facing surface and the at least one pin engaging surfaces of the at least two links is formed from a steel alloy with at least about 2.5 wt.% Cu and the other of the outwardly facing surface and the at least one of the pin engaging surfaces of the at least one of the at least two links is formed from a stainless …
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 29, 2004 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2026.
- 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.