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Expired Canadian patentCanada

Absorbent components having a fluid acquisition zone

CA 2249296 C · Owner: Schmidt, Mattias · Inventors: Schmidt, Mattias

CIPO record

Overview

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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 disclosure relates to an absorbent core capable of absorbing discharged aqueous body fluids. The core contains a swellable fluid storage material that forms, upon contact with aqueous body fluids a fluid acquisition zone. The , fluid acquisition zone is located remote from the user to avoid flowback or , rewetting of the topsheet of an article containing the core. The disclosure further relates to an absorbent article useful for absorbing discharged aqueous body fluids that comprises: A) a fluid pervious topsheet; B) a backsheet; and C) an absorbent core, as described above positioned between , the topsheet and the backsheet.

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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 21, 1997 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 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.
FiledMarch 21, 1997
GrantedJanuary 28, 2003
Term endedMarch 21, 2017
Patent numberCA 2249296 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 21, 1997Patent grantedJan 28, 2003Term endedMarch 21, 2017

Sources & verification

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