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Expired Canadian patentCanada

Primer produced opalescent coating

CA 1296958 C · Owner: Panush, Sol · Inventors: Gelmini, James M.; Bradey, Nancy B.; Panush, Sol

CIPO record

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Abstract From the Canadian patent

Primer Produced, Opalescent Coating A unique opalescent color effect is produced on a substrate material utilizing a multicoat coating system. The primer base coat is a nonmetallic primary color coat having an N-4 to N-8 value on the Munsell color chart. Directly on top of the primer base coat there is applied a transparent interference coat containing a polymeric binder and metal oxide encapsulated mica particles in a pigment to binder ratio of 0.06 to 0.13. On top of the previously applied coats is applied a transparent protective clear coat, the primary base color coat being a high solids content primer layer having good corrosion resistance, good adhesion, etc. The resultant coating in …

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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 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 22, 1986
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1296958 C
Classification (IPC)B44F9/08 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedAug 22, 1986Patent grantedMarch 10, 1992Term endedMarch 10, 2009

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