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Expired Canadian patentCanada

Resinous polymer sheet materials having selective, decorative effects

CA 1087935 A · Owner: Congoleum Corporation · Inventors: Kaminski, Stanley J.

CIPO record

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

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Abstract From the Canadian patent

Resinous polymer sheet materials having selective decorative effects, comprising: a first layer of a resinous polymer composition: a pattern or design printed on and adhered to the surface of the first layer of resinous polymer composition and having relatively dark colored printed portions and relatively light colored printed portions: and a second layer of a resinous polymer composition applied on and adhered to the printed pattern or design and to the first layer of resinous polymer composition, the second layer of resinous polymer composition having a refractive index of from about 1.3 to about 1.7 and having included or embedded substantially uniformly therein a layer of relatively …

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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 October 21, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 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.
FiledMay 10, 1977
GrantedOctober 21, 1980
Term endedOctober 21, 1997
Patent numberCA 1087935 A
Classification (IPC)D06N3/18 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedMay 10, 1977Patent grantedOct 21, 1980Term endedOct 21, 1997

Sources & verification

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