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Expired Canadian patentCanada

Loop fastener portion with thermoplastic resin attaching and anchoring layer

CA 1298066 C · Owner: Nestegard, Susan K. · Inventors: Nestegard, Susan K.; Ott, Ronald L.

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 loop fastener portion including a soft flexible sheet-like fibrous structure having a multiplicity of loops along a first surface adapted to be releasably engaged by a mating fastener portion, and a layer of thermoplastic resin adhered to a second major surface of the fibrous structure which anchors the loops in the fibrous structure and is softenable by the application of heat to adhere the fastener portion to a substrate such as the surface of a disposable diaper.

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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 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 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 30, 1987
GrantedMarch 31, 1992
Term endedMarch 31, 2009
Patent numberCA 1298066 C
Classification (IPC)A44B18/00

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJuly 30, 1987Patent grantedMarch 31, 1992Term endedMarch 31, 2009

Sources & verification

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