Chain saw mini-workbench
CA 2265037 C · Owner: Macdonald, Kenneth (Lockie) · Inventors: Macdonald, Kenneth (Lockie)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mini-workbench made of a flat bar having a top surface and a bottom surface, a planar tab extending from said bottom surface and a tridental clamp mounted to the top surface for clamping the bar of a chain saw. The planar tab is insertable in a slot cut in a tree stump for retaining the flat bar to the tree stump. The tridental clamp is usable for retaining the saw bar to the flat bar, whereby the chain saw may be filed with ease firmness and precision. In one aspect of the invention the thickness of the, planar tab is similar to a common chain saw kerf. A woodcutter may use his/her power saw for slotting the upper end of a tree stump having a proper height and location, and easily mount …
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 8, 1999 and granted October 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 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.