Abrasives
CA 1333337 C · Owner: Korund Laufenburg Gmbh · Inventors: Dietrich, Rainer; Babl, Albert; Zahradnicek, Ales
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An abrasive grain with an aluminum oxide base is disclosed. The surface of the grain has been treated with from 0.001 to 5.0 percent by weight, based on the weight of the abrasive grain, of a hygroscopic and/or hydrophilic substance. The treated grain which possesses good throwing power and a good capability of being integrated in flexible abrasives or in grinding wheels with artificial resin bonding.
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
- Granted December 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 6, 2011.
- 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.