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Expired Canadian patentCanada

Stretchable absorbent articles

CA 2243049 C · Owner: Lavash, Bruce William · Inventors: Hines, Letha Margie; Sugahara, Kazuko; Mayer, Katherine Louise

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 relates to absorbent articles such as sanitary napkins worn by women. More particularly the present, invention relates to absorbent articles such as thin sanitary napkins, that are stretchable especially in the longitudinal direction.

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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 July 23, 1992 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 23, 1992
GrantedNovember 12, 2002
Term endedJuly 23, 2012
Patent numberCA 2243049 C
Classification (IPC)A61F13/56 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJuly 23, 1992Patent grantedNov 12, 2002Term endedJuly 23, 2012

Sources & verification

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