Composite nonwoven with high transverse strength, process for its manufacture and use
CA 2394233 A1 · Owner: Carl Freudenberg Kg · Inventors: Pehr, Marc; Groitzsch, Dieter; Grimm, Hansjorg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nonwoven composite is disclosed which has a high transverse strength. A process for its, manufacture and preferred uses are also disclosed. The laminate in accordance with the invention, includes at least one nonwoven and a reinforcing material hot melt bonded thereto in a regularly, repeated pattern of bonding areas whereby the reinforcing material is derived from a thermoplastic, foil. The laminate can be used as surgical gown as textile upper material for , single use as belt, or in, absorbent products such as diapers or feminine hygiene products.
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 July 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2024.
- 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.