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Expired Canadian patentCanada

Drapeable sanitary absorbent napkin and materials for use in drapeable sanitary absorbent articles

CA 2579416 C · Owner: Mcneil-Ppc, Inc. · Inventors: Kirsch, Elisabeth; Poccia, John; Aramendia, Alvaro Garcia

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An absorbent article including a cover layer a barrier layer and an absorbent , system arranged between the cover layer and the barrier layer the absorbent , article being drapeable and possessing the absorbency attributes required of a sanitary napkin.

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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 16, 2005 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 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 16, 2005
GrantedJuly 16, 2013
Term endedSeptember 16, 2025
Patent numberCA 2579416 C
Classification (IPC)A61F13/15 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 16, 2005Patent grantedJuly 16, 2013Term endedSep 16, 2025

Sources & verification

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