Patent Yard Sign in
Expired Canadian patentCanada

Oxidation resistant porous abradable seal member for high temperature service

CA 1097102 A · Owner: Union Carbide Corporation · Inventors: Sara, Raymond V.

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

Porous abradable sintered metal structures suitable and thus suitable for high temperature service by introduceing into the porous structure an intermetallic compound of aluminum with one of chromium, titanium cobalt and nickel, which compound is then thermally reacted with the porous metal structures to form an aluminum alloy in the structure.

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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 18, 1978
GrantedMarch 10, 1981
Term endedMarch 10, 1998
Patent numberCA 1097102 A
Classification (IPC)B22F3/00 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedSep 18, 1978Patent grantedMarch 10, 1981Term endedMarch 10, 1998

Sources & verification

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