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Expired Canadian patentCanada

Absorbent article fastener pattern

CA 2092204 C · Owner: Johnson, Theresa Louise · Inventors: Osborn, Thomas Ward Iii; Johnson, Theresa Louise; Olsen, Robb Eric

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

An absorbent article, such as a sanitary napkin that is for attaching to and wearing in an undergarment is provided. The sanitary napkin of the present invention has a fastener that aids the sanitary napkin in assuming a body-conforming conforming configuration during wear. The fastener comprises at least two zones of fastener material located only in the end regions of the sanitary napkin. In one embodiment, the zones of fastener material are arranged in an overall configuration that resembles a modified letter "X"' without any fastener material in the portion of the configuration that would form the center of the later X and the ends, of the "X" located in the corner regions of the …

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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 December 23, 1997. 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
GrantedDecember 23, 1997
Term endedJuly 23, 2012
Patent numberCA 2092204 C
Classification (IPC)A61F13/15 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJuly 23, 1992Patent grantedDec 23, 1997Term 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.