Tree felling disc saw and replaceable teeth for same
CA 2338829 A1 · Owner: Tigercat Industries Inc. · Inventors: Bohner, Stephan E.; Hoshel, Andrew R.; Barlow, Duane Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disc saw blade has a plurality of teeth detachably mounted in sockets provided in a rim portion around the circumference thereof. Each tooth has an anchoring portion, and a cutting edge which projects slightly from the circumference of, the saw blade. The sockets each have an anchor-receiving portion to receive the, anchoring portion of a tooth. The teeth and the sockets are configured such that each, tooth is installed by inserting its anchoring portion into a corresponding anchor-receiving, portion of a socket, in an axial direction and then securing the tooth to , prevent axial removal, for example by making the anchoring portion cylindrical and rotating the tooth, rearwardly …
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 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2023.
- 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.