Unit dose nonaqueous liquid softener disposed in water soluble container
CA 2494533 A1 · Owner: Rousselet, Juliette · Inventors: Epp, Jeffrey T.; Zappone, Marianne; Reul, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water soluble container having disposed therein a nonaqueous liquid fabric softener composition. The container is formed from a polymer chosen from the group consisting of polyvinyl alcohols polyvinyl alcohols copolymers, partially hydrolysed polyvinyl acetate polyvinyl pyrrolidone, alkyl , celluloses and their ethers and esters sodium carboxymethyl cellulose, dextrin maltodextrin polyacrylates, polyacrymides and acrylic acid/maleic anhydride copolymers. The softener composition comprises at least one organic softening agent chosen from the group consisting of fatty acid soaps,glycerol esters, ethoxylated fatty esters, fatty alcohols polyol polymers, higer fatty , acid esters of …
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 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2025.
- 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.