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Expired Canadian patentCanada

Disposable absorbent article

CA 1055237 A · Owner: Colgate-Palmolive Company · Inventors: Patience, Donald; Fitzgerald, Harry G.

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 comprising an absorbent pad, having a mass of hydrophilic fibers and a matrix of a comminuted hydrophobic material dispersed in the interfiber spaces defined by the fibers throughout at least a portion of the pad.

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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 May 29, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 1996.
  • 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—
GrantedMay 29, 1979
Term endedMay 29, 1996
Patent numberCA 1055237 A
Classification (IPC)A61F13/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 29, 1979Term endedMay 29, 1996

Sources & verification

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