Debur tool for simultaneously removing burrs from and chamfering a hole in a workpiece
CA 2254471 A1 · Owner: Hudson Products Corp. · Inventors: Sadoski, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A debur tool for simultaneously removing burrs from holes in a workpiece such as, those in a header box tube sheet also has a beveled surface adjacent a cutting edge for chamfering an edge of the hole from which a burr is removed. The cutting edge ishorizontally offset from a shaft carrying the cutting edge.
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 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.