Thumb for scooping tool arm
CA 2383336 C · Owner: Sylvain, Frederic · Inventors: Frigon, Denis; Sylvain, Frederic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The thumb is used on a hydraulic tool arm equipped with a scooping tool for selective co-operation between the scooping tool and the thumb. The thumb has a pair of , generally parallel U-shaped lateral forks defining an opening therebetween for engagement of , the tool arm between the forks. The forks define an inner end having a transverse coupling , member for operative coupling of the thumb to the tool arm for movement of the thumb about , the tool arm, and an outer free end opposite the inner end. The forks are significantly curved , about a common axis.
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 16, 2002 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2024.
- 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.