Patent Yard Sign in
Expired Canadian patentCanada

Absorbent pad with reinforcing member to resist deformation

CA 1315487 C · Owner: Kimberly-Clark Corporation · Inventors: Handler, Michael D.; Mason, Stanley I. Jr.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention is providing a flexibly stiff reinforcing member that will maintain the shape of a pad for absorption of human exudate, such as a feminine hygiene pad during use. The, flexibly stiff reinforcing member will return the pad to its desired shape, even after it has been deformed by movement of the wearer. In a particularly preferred form the flexibly stiff, reinforcing member is a flat strip of polyethylene that extends around the periphery of a feminine hygiene pad. In other embodiments, the resilient reinforcing member may only be present in the periphery of the center or crotch portion of the pad. The strength and flexibility required of the reinforcing member will vary …

Read the whole patent

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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
  • 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, 1988
GrantedApril 6, 1993
Term endedApril 6, 2010
Patent numberCA 1315487 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJune 21, 1988Patent grantedApril 6, 1993Term endedApril 6, 2010

Sources & verification

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