A multilayered absorbent core with filled cavities
CA 2724797 C · Owner: The Procter & Gamble Company · Inventors: Lindner, Torsten; Stiehl, Gabriele; Becker, Uwe Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns an absorbent article preferably a disposable absorbent article such as a diaper. The present invention specifically concerns an absorbent core for such an absorbent article which provides an improved immobilization of absorbent polymer material when the article is fully or partially urine loaded. This absorbent core is useful for providing an absorbent article of increased wearing comfort. Specifically disclosed is an absorbent core useful for an absorbent article comprising a substrate layer and absorbent material the absorbent material comprising an absorbent polymer material the absorbent material optionally comprising absorbent fibrous material the …
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 February 12, 2004 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2026.
- 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.