Disposable absorbent articles having reduced surface wetness
CA 2237035 C · Owner: Plischke, Manfred · Inventors: Plischke, Manfred; Meyer, Wolfgang; Schmidt, Mattias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable absorbent article comprising a backsheet a topsheet, a fluid , acquisition/distribution region and at least one fluid storage region, said article having a total product acquisition performance of more than 3.75 ml/sec in the first gush and more than 0.5 ml/sec in the fourth gush and an in bag stack height of less than 9.9 mm characterised , in that said topsheet allows to retain no more than 0.25 g of fluid as measured by the topsheet-on-acquisition-material-wetness test and , that said acquisition/distribution region has a drip capacity of at least 5.0 grams of fluid per gram of material.
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 22, 1996 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2018.
- 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.