Spinning substrate holder for cutting tool inserts for improved arc-jet diamond deposition
CA 2177013 C · Owner: Olson, James M. · Inventors: Olson, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mandrel for use in an arc-jet spinning diamond deposition process for coating cutting tool inserts is disclosed. The mandrel has a plurality of cutouts or wells for receiving cutting tool inserts. The receiving wells are machined or otherwise provided to have the same contour as the cutting tool inserts that are placed in the wells. The receiving wells may all have an identical geometry, or different geometries. In one embodiment the mandrel, comprises a single element with the receiving wells machined into the upper surface of the mandrel. In another embodiment the mandrel comprises a, separate upper plate with the receiving wells cut through the plate to form a grid, and a lower base …
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 May 21, 1996 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2018.
- 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.