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Expired Canadian patentCanada

Disposable absorbent undergarment

CA 2184970 C · Owner: Ono, Yoshio · Inventors: Fujioka, Yoshihisa; Ono, Yoshio; Takigawa Yoshikazu

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 disposable undergarment comprises pants and an absorbent pad detachably attached to the pants. First suspending flaps hang down from an inner side of a stretchable waist-opening peripheral edge toward a crotch section of the pants. The first suspending flaps are provided with first fastening means. Second suspending flaps extend from longitudinally opposite ends of an absorbent core of the pad. The second suspending flaps are provided with second fastening means which are releasably engaged with the first fastening means.

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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

  • Filed September 6, 1996 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 6, 1996
GrantedJune 6, 2000
Term endedSeptember 6, 2016
Patent numberCA 2184970 C
Classification (IPC)A61F13/56 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedSep 6, 1996Patent grantedJune 6, 2000Term endedSep 6, 2016

Sources & verification

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