Conveyor chain
CA 2774912 C · Owner: Frost Links, Inc. · Inventors: Frost, Charles C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pin for connecting chain links together to define a section of chain for conveying product along a conveying system comprises opposite end portions for engaging at least one link of the section of chain a shaft portion extending between the opposite end portions and a sleeve portion around and at least partially along the shaft portion. The sleeve portion is arranged on the shaft portion to engage another link of the section of chain when the opposite end portions are engaged with the at least one link of the section of chain. The sleeve portion is movable relative to the shaft portion.
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 March 7, 2003 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2025.
- 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.