Patent Yard Sign in
Expired Canadian patentCanada

Ladle covering compound

CA 1214902 A · Owner: Labate, Michael D. · Inventors: Labate, Micheal D.

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

The exposed surface of a molten metal ferrous or, non-ferrous in a ladle is covered by an expanding insulating ladle covering compound that is capable of absorbing and removing non-metallic inclusions in a predictable volume. The compound includes burnt lime in amounts between 56% and 60% by weight, aluminum dross including, Al2O3 in amounts between 22% and 30% by weight,fluorspar in amounts between 7% and 9% by weight and acid treated, graphite in amounts between 1% and 4% by weight. -2-

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 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 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.
FiledMay 7, 1984
GrantedDecember 9, 1986
Term endedDecember 9, 2003
Patent numberCA 1214902 A
Classification (IPC)B22D7/10

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedMay 7, 1984Patent grantedDec 9, 1986Term endedDec 9, 2003

Sources & verification

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