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Expired Canadian patentCanada

Method for creating an absorbent article exhibiting a harmonic color scheme

CA 2575590 C · Owner: The Procter & Gamble Company · Inventors: Hsueh, Kesyin Fugger; Litchholt, John Joseph; Song, Limin

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Abstract From the Canadian patent

A method for coloring a disposable absorbent article comprising the steps of providing a plurality of elements each comprising at least one imparted color; wherein , the imparted color was provided by a coloration technique and joining at , least two , elements that were subjected to different coloration techniques to yield the disposable , absorbent article; wherein the imparted colors of the elements subjected to the different , coloration techniques are contained within a CIELab color space volume of less than , about 190. The imparted colors of the elements subjected to the different coloration , techniques may also be contained within a CIELab color space hue difference of less …

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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 July 29, 2005 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 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.
FiledJuly 29, 2005
GrantedJanuary 10, 2012
Term endedJuly 29, 2025
Patent numberCA 2575590 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 29, 2005Patent grantedJan 10, 2012Term endedJuly 29, 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.