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Expired Canadian patentCanada

A pant-type absorbent article

CA 2829700 C · Owner: Essity Hygiene And Health Aktiebolag · Inventors: Wennerback, Margareta

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

A pant-type absorbent article having an absorbent assembly comprising an absorbent core and a chassis. The chassis comprises front and back portions joined to each other along two opposite longitudinal side edges to define a waist-opening and a pair of leg-openings. At least one of the front and back portions comprises an elastic web material. A crotch portion is located between the front and back portions in the longitudinal direction of the article. The absorbent assembly lies at least in the crotch portion and overlaps a certain distance with both the front and back portions. The article has front and rear halves defined by the edges and a transverse centre line of the article. The …

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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 March 2, 2005 and granted May 24, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 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.
FiledMarch 2, 2005
GrantedMay 24, 2016
Term endedMarch 2, 2025
Patent numberCA 2829700 C
Classification (IPC)A61F13/49

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 2, 2005Patent grantedMay 24, 2016Term endedMarch 2, 2025

Sources & verification

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