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Expired Canadian patentCanada

Sanitary napkin having stabilizing members in the end regions

CA 2276367 C · Owner: Osborn, Thomas Ward Iii · Inventors: Osborn, Thomas Ward Iii

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

The present invention provides an absorbent article preferably being a sanitary napkin that comprises a longitudinal centerline a transverse , centerline, a pair of longitudinal edges two end edges, a first end region , extending from one of the end edges toward the transverse centerline and a , second end region extending from the other end edge toward the transverse centerline. Also, there is a central region positioned between the first and second end regions. The sanitary napkin further comprises a first surface a , second surface that is faced opposite to the first surface wherein the flexureresistance of the sanitary napkin as measured through the first and second end regions is …

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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 December 23, 1997 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 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.
FiledDecember 23, 1997
GrantedAugust 5, 2003
Term endedDecember 23, 2017
Patent numberCA 2276367 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 23, 1997Patent grantedAug 5, 2003Term endedDec 23, 2017

Sources & verification

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