Using cationic celluloses to enhance delivery of fabric care benefit agents
CA 2495117 A1 · Owner: The Procter & Gamble Company · Inventors: Leyendecker, Mary Ruth; Wang, Jiping; Panandiker, Rajan Keshav
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Laundry product compositions containing a stable mixture of at least one water insoluble fabric care benefit agent and at least one delivery enhancing agent that is preferably a silicone derivative. Detergent laundry product compositions containing from about 1% to about 80% by weight of the , composition, of a detersive surfactant that is an anionic surfactant cationic , surfactant, nonionic surfactant amphoteric surfactant, zwitterionic , surfactant or a mixture thereof; from about 0.1% to about 10% by weight of , the composition, of a water insoluble fabric care benefit agent; from about 0.01% to about 5%, by weight of the composition of a delivery enhancing , agent; and wherein the …
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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 September 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.