Alloy steel
CA 1080516 A · Owner: Carpenter Technology Corporation · Inventors: Philip, Thoni V.; Maniar, Gunvant N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An alloy steel is provided containing by weight, percent, carbon 0.5-1.1, manganese 0.10-<0.50 silicon 0.10-, <0.80, chromium 3.5-5.0 molybdenum 2.5-5.0, vanadium 0.5-2.0, cobalt 0.5-4.0 columbium 0.15-0.50, up to 0.10 aluminum and the balance iron except for incidental impurities. The alloy can be balanced to provide a minimum room temperature hardness of Rc 60 with outstanding toughness and ductility or to provide a minimum room temperature hardness of Rc 63 with good wear resistance.
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 July 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 1, 1997.
- 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.