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Expired Canadian patentCanada

Sanitary article with improved fitness

CA 2117658 C · Owner: Fukui, Hiroaki · Inventors: Suzuki, Migaku; Fukui, Hiroaki

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

According to the present invention, there is provided a sanitary article comprising a main body having a liquid-impermeable back sheet a , liquid-permeable front sheet and an absorbent material and leg holes having at the, opposed edge portions of the main body further comprising fixation means, forming a flexible ring which are fitted closely over the entire circumference of, the proximal portion of each of the wearer's legs. The article to which the present invention is directed includes both the diaper and the sanitary napkin and, hence, as the main body, either of one taking the form of underpants when worn, which has a size enough to cover the wearer's entire waist portion and , of, …

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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 1, 1994 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 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.
FiledSeptember 1, 1994
GrantedOctober 17, 2000
Term endedSeptember 1, 2014
Patent numberCA 2117658 C
Classification (IPC)A61F13/15 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedSep 1, 1994Patent grantedOct 17, 2000Term endedSep 1, 2014

Sources & verification

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