Flushable fibrous structures
CA 2311380 A1 · Owner: Bjorkquist, David William · Inventors: Bjorkquist, David William; Mansfield, Todd Leon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a flushable fibrous structure that is particularly useful as a disposable tissue product and as a component (e.g. topsheets) for absorbent articles such as catamenial pads diapers, incontinent articles and the like. The invention specifically relates to a flushable fibrous structure that has an in-use wet tensile strength of at least about 100g/in. and a disposal wet tensile strength of not more than about 30g/in. The invention also relates to absorbent articles comprising the fibrous structures, and methods for making the structures.
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 November 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 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.