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Expired Canadian patentCanada

Disposable diaper with improved hook and loop fastener system

CA 1340482 C · Owner: Melbye, William L. · Inventors: Midgley, Roland R.; Wood, Leigh E.; Melbye, William L.

CIPO record

Overview

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

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Abstract From the Canadian patent

A disposable garment or diaper including a laminate and a hook and loop fastener for fastening together portions of the laminate to secure the diaper to an individual. The fastener includes a loop fastener portion adjacent a first end of the laminate comprising a multiplicity of loops, a pair of flexible elongate polymeric tab assemblies having first end portions attached at opposite sides to the laminate adjacent a second end of the laminate and having distal end portions unattached to the laminate, and hook fastener portions at the distal end portions of the tab assemblies comprising a plurality of projecting hook members adapted to make releasable engagement with the loops. The tab …

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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 April 6, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 5, 1989
GrantedApril 6, 1999
Term endedApril 6, 2016
Patent numberCA 1340482 C
Classification (IPC)A61F13/62 +1 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedJan 5, 1989Patent grantedApril 6, 1999Term endedApril 6, 2016

Sources & verification

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