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Expired Canadian patentCanada

Absorbent article with acquisition zone

CA 2257690 C · Owner: Hinds, Charlene Ann · Inventors: Hinds, Charlene Ann; Darby, Dennis Allen; Patel, Dhanraj Shantilal

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 disposable absorbent article such as an incontinence pad that is both comfortable and suitable for absorbing and containing large volumes of body liquids rapidly without leakage, especially a subsequent gush of liquid. The absorbent article has a pair of end regions and a central region disposed , between the end regions. The central region includes a pair of spaced apart longitudinal side portions and a central portion disposed between the longitudinal side portions. The absorbent article includes a liquid pervious topsheet, a liquid impervious backsheet joined to the topsheet an absorbent , core positioned between the topsheet and backsheet and an acquisition , component …

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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 June 10, 1997 and granted March 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1997
GrantedMarch 25, 2003
Term endedJune 10, 2017
Patent numberCA 2257690 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJune 10, 1997Patent grantedMarch 25, 2003Term endedJune 10, 2017

Sources & verification

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