Process for plating super abrasive materials onto a honing tool
CA 2050439 C · Owner: Schimweg, John J. · Inventors: Schimweg, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved method for plating super abrasive materials onto the working portion of a honing tool, which method includes plating or otherwise coating a relatively thin layer of a composite material comprising a metal or metal alloy material having a friction reducing or lubricating type material occluded or otherwise associated therewith over the top of the bond already established between the abrasive particles and the working portion of the honing tool so as to substantially reduce and minimize the occurrence of having stock material build-up and collect between the abrasive particles, which stock build-up causes galling or scoring of the honed work surface during a honing operation. In …
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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 August 30, 1991 and granted July 5, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2013.
- 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.