Method and apparatus for computer numerically controlled pin grinder gauge
CA 2264106 C · Owner: Unova Ip Corp. · Inventors: Hykes, Timothy W.; Mowan, Ricky L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for grinding crankshafts or similar devices in which one of the crankpins of the crankshaft is machined and subsequent to this machine step, the actual dimension of the crankpin is measured. This measured value is compared to the projected value of the crankpin and the distance of travel of a grinding wheel in-feed is adjusted accordingly.
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 4, 1997 and granted November 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 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.