Grinding tool
CA 2366501 A1 · Owner: Uegaki, Tateo · Inventors: Ueno, Makoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grinding tool for grinding a surface to a predetermined shape which is , superior in operability and stability and capable of grinding a surface to a desired shape, and which comprises a rotary base plate section having a grinding surface for holding a grinding agent thereon a plurality of movable , base plate sections having a grinding surface for holding a grinding agent thereon disposed in the peripheral edge of the rotary base plate section and rotatable around a line of connection with the rotary base plate section and , an elastic member for urging the grinding surface of the movable base plate section against the grinding surface of the rotary base plate section in a …
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 9, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 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.