Absorbent article and barrier agent for absorbent article
CA 2357516 A1 · Owner: Miyazawa, Kiyoshi · Inventors: Hisanaka, Takayuki; Endo, Tomoko; Miyazawa, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an absorbent article such as a diaper, sanitary napkin, or the like which can prevent a rash in the wearer, as well as a barrier agent to be applied to the surface of an absorbent article when such an absorbent article is produced. The barrier agent for an absorbent article is characterized by comprising an oil soluble antioxidant.
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 September 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2023.
- 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.