Tree harvester
CA 2212365 C · Owner: Unosen, Olov · Inventors: Unosen, Olov
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a tree harvester for felling limbing and cross-cutting tree trunks, comprising a limbing head (15) and felling head (16) assembly which is carried by a boom system. The limbing head (15) and the felling head (16) are detachably connectable to one another and are commonly pivotal about a point (21) on the boom system in conjunction with a tree felling operation. The limbing head (15) and the felling head (16) can be moved away from one another along the boom system (10 18) in conjunction with a tree-trunk limbing and cross-cutting operation, and also in different directions away from the location on the boom system at which they are commonly pivotal.
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 February 24, 1995 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2017.
- 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.