Disposable training pants
CA 2040602 C · Owner: Sasaki, Tohru · Inventors: Kitaoka, Hideaki; Igaue, Takamitsu; Sasaki, Tohru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Here is disclosed disposable baby training pants basically comprising a liquid-permeable inner sheet a, liquid-impermeable outer sheet and, if necessary a liquid, absorbent core sandwiched therebetween wherein at least a, part of the inner sheet is formed from hydrophilic material to define a wetness sensing zone so that when a baby having, the training pants on excretes the inner surface of the, training pants is wetted and the baby senses this.
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 April 16, 1991 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.