Moisturizing compositions
CA 1045979 A · Owner: Unilever Limited · Inventors: Oleniacz, Walter S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Moisturizing units capable of moisturizing and improving flexibility, plasticity, and softness of keratinous matter, particularly mammalian skin comprise, liposomes, each having a matrix of a ternary lipid mixture of lecithin, dicetyl phosphate, and a sterol and having, cavities disposed within the liposome; the cavities containing a humectant such as sodium pyroglutamate in an aqueous, medium. The moisturizing liposomes function osmotically serving as traps for water, which may be shared with the keratin constituents as required.
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
- Granted January 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 1996.
- 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.