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Expired Canadian patentCanada

Disposable diaper with cover means

CA 1073602 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 comprises an absorbent pad assembly having a fluid impervious backing sheet at least partially defining a back surface of the pad assembly a front, surface, a pair of side edges a pair of end edges connecting, the side edges and a pair of waistline portions. The diaper has a disposal cover adjacent an edge of the pad assembly the, cover comprising a sheet of flexible material being transversely folded to a configuration of reduced dimensions. The sheet has a sufficient width and length to pass over remote portions of the pad assembly and provide a cover for the soiled pad assembly after use of the diaper. The diaper has means for securing side regions of the folded sheet …

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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 March 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 18, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 18, 1980
Term endedMarch 18, 1997
Patent numberCA 1073602 A
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 18, 1980Term endedMarch 18, 1997

Sources & verification

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