Topical urea composition
CA 2382833 A1 · Owner: Singh, Parashu Ram · Inventors: Perlmutter, Alan Lorne; Singh, Parashu Ram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Topical composition that contains about 10 to about 50 % by weight urea with respect to the total composition weight of the composition; and a topically effective amount of an anti-oxidant compatible with skin. Compositions containing vitamin E, vitamin C, vitamin D and green tea are described. Also described is a method of enhancing delivery of an anti-oxidant to the viable epidermis, including topically applying a composition of the invention to a skin surface of a mammal.
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 September 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2022.
- 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.