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Expired Canadian patentCanada

Method of making decorative laminated products such as tiles, panels or webs

CA 1183440 A · Owner: Tarkett Ab · Inventors: Ryden, Sven A.; Lussi, Eduard; Ahlstedt, Ulf L.

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

Abstract of the Disclosure: A laminated decorative tile particularly for flooring purposes, is made by forming a base layer of granulated cellulosic material in a matrix of fusible plastics, and placing on the base layer a thin decorative layer of cellulosic material with natural holes and recesses therein. After a film of fusible plastic has been applied on the decorative layer the laminate is hot pressed and then immediately cooled in a cold press. The tile obtained has a pleasing appearance because the granules of the base layer have been forced up, in the hot press- 1a, ing operation, into the holes and recesses of the decorative layer, filling out these holes and recesses. In this …

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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 March 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2002.
  • 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 4, 1982
GrantedMarch 5, 1985
Term endedMarch 5, 2002
Patent numberCA 1183440 A
Classification (IPC)B32B9/02 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMay 4, 1982Patent grantedMarch 5, 1985Term endedMarch 5, 2002

Sources & verification

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