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Expired Canadian patentCanada

Disposable diaper with fastener retained end barrier

CA 1109204 A · Owner: Colgate-Palmolive Company · Inventors: Karami, Hamzeh

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

A disposable diaper comprising, an absorbent pad assembly having a pair of side edges, a pair of end edges connecting the side edges, a front surface, a backing sheet of fluid impervious material defining a back surface of the pad assembly an absorb-, ent pad, and a laterally extending end section including the backing sheet adjacent one end edge of the pad assembly. The end section is folded along a fold line with a front surface of the end section facing the front surface of an underlying portion of the pad assembly adjacent the fold line. The diaper has a tape fastener comprising, a release sheet having a release back surface and having a first end portion secured to the back surface of …

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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 September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 1977
GrantedSeptember 22, 1981
Term endedSeptember 22, 1998
Patent numberCA 1109204 A
Classification (IPC)A61F13/58 +1 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedAug 18, 1977Patent grantedSep 22, 1981Term endedSep 22, 1998

Sources & verification

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