Shellac-containing cosmetic product
CA 2294024 A1 · Owner: Lancaster Group Gmbh · Inventors: Golz-Berner, Karin; Zastrow, Leonhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a cosmetic emulsion or a gel that contains shellac. In accordance with the invention, a shellac-containing cosmetic product is produced which contains shellac in the aqueous phase. The proportion of pure shellac lies between 0.1 and 20 wt.% in an O/W emulsion; between 0.1 and 15 wt.% in a W/O emulsion; and between 0.1 and 10 wt.% in a hydrogel. Between 1 and 20 wt.% of other cosmetically active components or other supporting materials are contained in the oil phase or the aqueous phase or in both , phases. The invention also relates to a method for producing the cosmetic product. In this method, in order to produce the aqueous shellac solution or dispersion …
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 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2020.
- 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.