Standing stem log harvesting system
CA 2280625 C · Owner: Boaz International Barbados Trust · Inventors: Jarman, Philip S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of standing-stem log harvesting including the steps of preparing a tree for harvesting and then harvesting the same. A tree is prepared for harvesting by topping the tree cutting, the tree part way through the trunk near ground level with two cuts lying in generally the same plane to leave holding wood between the resulting two generally parallel cut edges and, driving support wedges or the like into both said cuts to stabilize the tree trunk. The holding wood and the wedges maintain the trunk stable and upright until it is harvested but, the holding wood is readily frangible in response to a generally horizontal pivoting force applied to the trunk near the top thereof in a …
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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 August 17, 1999 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 17, 2021.
- 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.