Process of treating a carpet with a composition comprising a non irritant surfactant
CA 2374075 A1 · Owner: The Procter & Gamble Company · Inventors: Ricci, Carlo; Sarcinelli, Luca; Grippaudo, Gabriella
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 process of treating a carpet comprising the application of a liquid composition onto said carpet using an electrical spraying device wherein said composition comprises a nonirritating anionic surfactant rated nonirritating to mucous membranes as measured at a 5% active surfactant solution using the Draize test method. The process according to the present invention provides a mucous membrane non irritation benefit.
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 June 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2022.
- 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.