Canter with curve-cutting capability
CA 2215076 C · Owner: Optimil Machinery Inc. · Inventors: Buchacher, Ernie R.; Chapman, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A canter capable of curve-cutting featuring rotary power-driven frustro-conical, chipper heads for chipping a workpiece which chipper heads are adjustable under the influence of movement structure to achieve five degrees of freedom of motion and adjustment which take into account the difference topographical characteristics of different workpieces.
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 September 9, 1997 and granted March 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2019.
- 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.