Abrasive articles including a crosslinked siloxane, and methods of making and using same
CA 2087131 A1 · Owner: Minnesota Mining And Manufacturing Company · Inventors: Ronning, Albert James; Leir, Charles Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An abrasive article is provided the article, including a substrate having an abrasive surface thereon including particles of an abrasive material secured by a binding medium wherein at least a portion of the abrasive surface has thereon a coating including a crosslinked siloxane. Methods of making and using such an articles are also presented.
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 January 12, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2015.
- 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.