Tissue paper product, and process for making the product
CA 2352092 A1 · Owner: Von Heimburg, Joachim · Inventors: Palumbo, Gianfranco; Von Heimburg, Joachim
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 tissue paper product comprising a tissue paper substrate and an enzyme inhibiting composition the enzyme inhibiting , composition being transferable from the tissue paper substrate onto the skin and being present in an amount sufficient to inhibit enzyme activity upon the skin. In particular it relates to the use of a facial handkerchief for the inhibition of enzyme activity upon the skin of the nasal region. Furthermore the present invention relates to a process for the manufacture of such tissue paper 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 November 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2021.
- 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.