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Expired Canadian patentCanada

Absorbent article having dual cuffs

CA 1341412 C · Owner: Blevens, John M. · Inventors: Blevens, John M.; Buell, Kenneth B.; Lawson, Michael Irwin

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

An integral disposable absorbent article such as a diaper having a liquid pervious topsheet, a liquid impervious backsheet an absorbent core disposed between the topsheet and the backsheet, at least one elastically contractible gasketing cuff and, at least one barrier cuff. The barrier cuff has a proximal edge and a distal edge. The absorbent article is additionally provided with spacing means for spacing the distal edge away from the top surface of the topsheet. In addition, adhesive means secure the end portions of the barrier cuff closed. A channel is formed between the proximal and distal edges in at least the crotch region because the distal edge is spaced away from the topsheet top …

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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

  • Granted December 24, 2002. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 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.
FiledOctober 8, 1986
GrantedDecember 24, 2002
Term endedDecember 24, 2019
Patent numberCA 1341412 C
Classification (IPC)A61F13/49

Timeline

Timeline From CIPO dates

198719911995199920032007201120152019Application filedOct 8, 1986Patent grantedDec 24, 2002Term endedDec 24, 2019

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