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Expired Canadian patentCanada

Base material for screen-printing

CA 2743541 C · Owner: Stork Prints B.V. · Inventors: Blankenborg, Stephanus Gerardus Johannes; Koster, Johannes Franciscus Gerardus; Poelman, Jacob Jacobus

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

The invention relates to a base material for screen-printing comprising a screen, a resist layer of resist material and a protective film. The screen comprises a network of dykes which delimit openings, the resist layer and the protective film are provided on just one side of the screen, and the filling level of the resist layer between the dykes of the screen is greater than 60%. The variation of the depth of penetration (hi) of the resist layer between the dykes of the screen is less than 5 micrometers, which improves the printing quality when such a base material is used for printing.

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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

  • Filed September 1, 2005 and granted October 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 1, 2005
GrantedOctober 15, 2013
Term endedSeptember 1, 2025
Patent numberCA 2743541 C
Classification (IPC)G03F7/09 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 1, 2005Patent grantedOct 15, 2013Term endedSep 1, 2025

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