Abrasive articles incorporating abrasive elements comprising abrasive particles partially embedded in a metal binder
CA 2083876 A1 · Owner: Lawson, Timothy · Inventors: Lawson, Timothy; Gorsuch, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An abrasive article comprising abrasive elements dispersed in a binder matrix, the abrasive elements comprising individual particles of abrasive material, substantially all of which are partially embedded in a metal binder. The abrasive particles when, introduced into an electrolyte bath only during the final stages of an electrodeposition process are embedded only, on a major surface of the metal binder. Methods of making the abrasive elements and the abrasive articles are also presented as aspects of the invention.
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 26, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2014.
- 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.