Distribution layer having improved liquid transfer to a storage layer
CA 2425952 A1 · Owner: Grant, Terry M. · Inventors: Marsh, David G.; Grant, Terry M.; Graef, Peter A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fibrous layer that includes a refined blend of crosslinked cellulosic fibers and noncrosslinked cellulosic fibers. In one embodiment the layer includes , about 85 percent by weight crosslinked fibers and about 15 percent by weight noncrosslinked fibers. An absorbent construct that includes the fibrous layer and a liquid storage layer. Personal care absorbent products that include the distribution layer.
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 December 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.