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Expired Canadian patentCanada

Coating composition and method of making same

CA 1114557 A · Owner: Battenfeld Grease & Oil Corp. Of New York · Inventors: Musilli, Thomas G.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A sprayable undercoating composition comprising an homogenous mixture of leather dust, water, neutralizer for the acidity of the leather dust, clay-based gellant, polar dispersant organic rust inhibitor, and, solubilized asphalt containing volatile solvent.

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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 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.
FiledNovember 14, 1979
GrantedDecember 22, 1981
Term endedDecember 22, 1998
Patent numberCA 1114557 A
Classification (IPC)C09D5/08 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedNov 14, 1979Patent grantedDec 22, 1981Term endedDec 22, 1998

Sources & verification

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