Disposable diaper
CA 1287199 C · Owner: Toyoda, Harumitsu · Inventors: Ito, Osamu; Toyoda, Harumitsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable diaper is characterized by having an elastic liquid-impermeable barrier sheet between the top sheet and the back sheet at least on the end of the diaper, said barrier sheet being fixed at one end at least onto the back sheet and at the other end located between the absorbent material and the top sheet.
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
- Granted August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2008.
- 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.