Aqueous compositions for facial cosmetics
CA 2492420 A1 · Owner: Chiou, Win L. · Inventors: Chiou, Win L.; Chiou, Linda L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention describes a highly versatile and effective facial composition containing two very simple human endogenous compounds glycerin or , any other nonvolatile, pharmacologically acceptable slowly absorbed, watermiscible, liquid organic substance and water which, when applied , topically to facial skin in high concentrations is surprisingly effective for , achieving facial skin improvements The effect of cosmetic improvements lasts up to 24 hours after one single application of the composition. The novel transparent or semi-transparent, unconventional aqueous composition is especially useful for postmenopausal women.
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 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.