Absorbent articles containing high fvaul sap
CA 2389053 A1 · Owner: Baker, Andrew · Inventors: Baker, Andrew; Chmielewski, Harry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable absorbent product (10) that comprises a liquid permeable top sheet (14); a liquid impermeable back sheet (12); and a two phase absorbent panel (16) positioned between the top sheet and the back sheet provided. The two phase absorbent panel structure comprises a wood pulp fiber and a surface cross linked superabsorbent material. In at least one layer of the two phase absorbent matrix, the superabsorbent material comprises substantially a continuous phase of the matrix (21'), where a sufficient quantity of particles of the superabsorbent material are in contact with each other to thereby define a capillary network for facilitating liquid transport within the matrix.
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 October 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2022.
- 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.