Disposable garments
CA 2057521 C · Owner: Mukai, Hirotomo · Inventors: Igaue, Takamitsu; Matsushita, Michiyo; Mukai, Hirotomo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In garments such as disposable diapers an absorbent, core 13 is provided on laterally opposite sides thereof with first and second flaps 15, 16 adapted to turn up under their own elastic shrinking potential. A tensile stress of each second flap 16 is adjusted to be lower than that of each first flap 15, a width of each second flap 16 is dimensioned to be larger than that of each first flap 15 and a stiffness of each second flap 16 is adjusted to be lower than of each first flap 15.
Read the whole patent
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 December 12, 1991 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.