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Expired Canadian patentCanada

Absorbent article having angular upstanding transverse partition

CA 2258498 C · Owner: The Procter & Gamble Company · Inventors: Litchholt, John Joseph; Payne, Michael; Roe, Donald Carroll

CIPO record

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

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Abstract From the Canadian patent

A disposable absorbent article having a transverse partition. The transverse partition is upstanding from the topsheet and presents an abrupt discontinuity out of the plane of the disposable absorbent article and obstructs fecal material deposited in the rear portion of the disposable absorbent article from migrating to the front portion of the disposable absorbent article. This obstruction minimizes soiling of the genitalia of the wearer. The disposable absorbent article may have upstanding barrier leg cuffs. The transverse partition may connect the barrier leg cuffs to form an H-shape. The transverse partition forms an acute angle with the rear portion of the disposable absorbent …

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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 17, 1997 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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 17, 1997
GrantedApril 15, 2003
Term endedJune 17, 2017
Patent numberCA 2258498 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJune 17, 1997Patent grantedApril 15, 2003Term endedJune 17, 2017

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