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Expired Canadian patentCanada

Disposable diaper with fastener retained end barrier

CA 1110006 A · Owner: Colgate-Palmolive Company · Inventors: Schaar, Charles H.

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 assem-, bly having an absorbent pad a front surface, a back surface, a, pair of side edges and a pair of end edges connecting the side edges. The pad assembly has a plurality of longitudinally extending folds defining a box-pleat configuration of the pad assembly having a pair of first fold lines defining a longitudinally extending central panel, and a pair of second fold lines defining a pair of first pleat panels intermediate the first and second fold lines and overlying the central panel and defining a, pair of second pleat panels extending from the second fold lines. The pad assembly has a lateral fold of the box-pleat assembly along a …

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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 October 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 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.
FiledJune 21, 1978
GrantedOctober 6, 1981
Term endedOctober 6, 1998
Patent numberCA 1110006 A
Classification (IPC)A61F13/58

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 21, 1978Patent grantedOct 6, 1981Term endedOct 6, 1998

Sources & verification

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