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Expired Canadian patentCanada

Molding and coating compositions

CA 1086900 A · Owner: Lajoie, Joseph L. · Inventors: Lajoie, Joseph L.

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

Compositions are provided which employ a fibrous cellular, absorbent organic material in place of asbestos fibre as a reinforcing and thickening additive; a wide variety of compositions including cements sealants and, paints can be made; a particularly preferred fibrous material is a foamed urea-formaldehyde crushed to a fibrous mass.

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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 September 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 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.
FiledSeptember 23, 1977
GrantedSeptember 30, 1980
Term endedSeptember 30, 1997
Patent numberCA 1086900 A
Classification (IPC)C08K7/02 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedSep 23, 1977Patent grantedSep 30, 1980Term endedSep 30, 1997

Sources & verification

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