A cosmetic product to prevent and correct skin damage
CA 2221559 C · Owner: Unilever Plc · Inventors: Bertolini, Peter; Indursky, Michael; Nettesheim, Susan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cosmetic product is provided to prevent and correct skin damage. The product includes a first composition for daytime use incorporating a sunscreen to prevent UV radiation damage, a second composition for nighttime use containing a C2-C30 .alpha.-hydroxycarboxylic acid or salt thereof to correct UV-induced skin damage, and respective first and second containers for separately storing each of the first and second compositions. The containers are releasably lockable together by a coupling mechanism such as a threaded screw arrangement. Preferably, the first and second containers are stackable one above the other in the releasably locked arrangement.
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 March 15, 1996 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2018.
- 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.