Self-texturing absorbent structures and absorbent articles made therefrom
CA 2284809 A1 · Owner: Chen, Fung-Jou · Inventors: Chen, Fung-Jou; Lindsay, Jeffrey Dean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel absorbent structure is disclosed in which an initially flat dense , structure becomes a three-dimensional high bulk, channeled structure upon , wetting. The structure offers unusually high directionality in fluid transport to improve the distribution of fluid in longitudinal articles. The selfbulking of the wetted article can also lead to improved fit in articles such as diapers and in general increases the void volume of the wetted article for high absorbent capacity.
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 March 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.