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Expired Canadian patentCanada

Disposable training pants

CA 2136064 C · Owner: Ohtsubo, Toshifumi · Inventors: Sasaki, Tohru; Nomura, Hironori; Ohtsubo, Toshifumi

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

Disposable training pants comprising a stretchable moisture holding sheet which is bonded at its longitudinally opposite ends to the top surface of a topsheet on front and rear bodies as the moisture holding sheet is stretched in longitudinally opposite directions with respect to a crotch zone across said front and rear bodies.

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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 November 17, 1994 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 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.
FiledNovember 17, 1994
GrantedAugust 8, 2000
Term endedNovember 17, 2014
Patent numberCA 2136064 C
Classification (IPC)A61F13/42 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 17, 1994Patent grantedAug 8, 2000Term endedNov 17, 2014

Sources & verification

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