Tree felling disc saw head with large tree accumulation area
CA 2252235 C · Owner: Kurelek, John · Inventors: Kurelek, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The felling and accumulating head has a large accumulation or storage area for severed trees separate from the severance area at the front of the head obtained by elevating the accumulation area to extend preferably at least over the rim of the saw disc and preferably outwardly and rearwardly over the teeth of the saw. Trees are swept from the severance area up a small ramp into the accumulation area by arms which preferably sweep over the saw motor so as to be able to sweep trees a substantial distance rearwardly i.e. at least beyond an imaginary lateral line through the saw 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 October 28, 1998 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2020.
- 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.