Disk-shaped tool, in particular, a circular saw blade
CA 2413600 A1 · Owner: Knebel, Albert · Inventors: Knebel, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disk-shaped tool, in particular, a circular saw blade includes cutting, teeth (11, 12, 13), in which the cutting teeth (12 13, 14) are divided into , groups, (11). Each first tooth (12) of a group (11) in the cutting direction (15), protrudes radially farther outward with its cutting edge than the following tooth or teeth (13, 14) of the group (11).
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 November 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
- 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.