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Expired Canadian patentCanada

Sanitary napkin with composite cover

CA 1305293 C · Owner: Luceri, Thomas Joseph · Inventors: Parr, Deborah Jean; Luceri, Thomas Joseph

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

Abstract of the Disclosure, A cover for a sanitary napkin or other absorbent product is provided which includes an outer layer of a hydrophobic material. The outer layer contains fluid passageways which are small enough so that the outer layer alone will not pass liquid therethrough. A second. liner layer is bonded to the interior surface of the outer layer and is comprised of a nonwoven web which is at least slightly wettable so as to draw liquids through the passageways of the outer layer. The liner layer contains large capillaries so that at least a majority of the liquid entering the liner layer from the fluid passageways will pass through the liner to the absorbent core of the product. …

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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 14, 1987
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305293 C
Classification (IPC)A61F13/15 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJuly 14, 1987Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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