Skin care compositions and method of improving skin appearance
CA 2309632 A1 · Owner: Ha, Robert Bao Kim · Inventors: Fowler, Timothy John; Ha, Robert Bao Kim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are topical compositions which provide good coverage of skin imperfections, e.g. pores and uneven skin tone while retaining a natural , skin appearance. The compositions contain a charged particulate material dispersed throughout a thickened, hydrophilic carrier. The charged particulate material allows the compositions to have a Coverage Efficiency Ratio of greater than about 20.
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 November 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.