Canadian application, no grantCanada
Abrasive grain, abrasive articles, and methods of making and using the same
CA 2385701 A1 · Owner: Monroe, Larry D. · Inventors: Monroe, Larry D.; Celikkaya, Ahmet; Castro, Darren T.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Alpha alumina-based abrasive grain. The abrasive grain can be incorporated into abrasive products such as coated abrasives bonded abrasives, non-woven , abrasives and abrasive brushes.
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 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 28, 2000
GrantedNo grant recorded
Term endedJanuary 28, 2020
Patent numberCA 2385701 A1
Classification (IPC)C04B35/11 +1 more
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.