Patent Yard Sign in
Expired Canadian patentCanada

Cast iron alloy and method for producing same

CA 1214342 A · Owner: Kabushikikaisha Kyowa Chuzosho · Inventors: Egusa, Saichi; Ii, Tadashi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A composite cast iron alloy used as a material for nonferrous metal casting equipment. The raw materials for the composite cast iron alloy include iron calcium-, containing substances, coke, titanium compounds silica, compounds containing graphite stabilizing elements and aluminum metal. The raw material for the iron is pig iron scrap and steel and the titanium compounds are either alkaline metal titanates or alkaline earth metal titanates. The composite cast iron alloy is produced by first melting and reacting the iron raw material with calcium containing substances, coke and titanium compounds to obtain melted iron material for casting, mixing the melted iron material for casting with …

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 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 25, 1983
GrantedNovember 25, 1986
Term endedNovember 25, 2003
Patent numberCA 1214342 A
Classification (IPC)C22C37/10 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedFeb 25, 1983Patent grantedNov 25, 1986Term endedNov 25, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.