Cemented carbide
CA 1134868 A · Owner: Sandvik Aktiebolag · Inventors: Ingelstrom, Nils A.; Dkesson, Leif A.E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sintered hard metal or cemented carbide is disclosed which consists of one or more hard materials consisting of molybdenum-tungsten-carbonitride having the structure of tungsten carbide in an amount of 50 to 99% by volume and a binder alloy of metals belonging to the iron group of the periodic system in amounts of 1 to 50 % by volume characterized, in that the contents of molybdenum and/or tungsten are at least partially substituted with one or more metals selected from the groups Cr, Nb, Ta, V or Re.
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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- 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.