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Expired Canadian patentCanada

Method of manufacturing a patterned, coloured surface on an object as well as an object manufactured by the method and a paint for carrying out the method

CA 1234941 A · Owner: Holmqvist, Olle · Inventors: Holmqvist, Olle

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

A method of manufacturing a patterned coloured surface, on an object having a surface of relatively low surface absorption when compared to the interior of the object and the article, produced by the method. The method comprises the steps of first preparing the pattern on the surface of the object by contouring predetermined portions of the surface, so that recesses are created therein having a substantially greater surface absorption and subsequently applying to the entire surface including the recesses a paint containing dye pigment, solvent and about 0.5-8%, calculated on the entire quantity of the paint of inert, non-, soluble fine-grained particles having a maximum cross dimension …

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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 April 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 5, 2005.
  • 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, 1985
GrantedApril 5, 1988
Term endedApril 5, 2005
Patent numberCA 1234941 A
Classification (IPC)B05D5/06 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedSep 23, 1985Patent grantedApril 5, 1988Term endedApril 5, 2005

Sources & verification

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