Non-sweating lipsticks
CA 2173104 C · Owner: El-Nokaly, Magda · Inventors: El-Nokaly, Magda; Peterson, Cheryl Lynn; Vatter, Michael Lee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to lipstick compositions which comprise wax emollient and a gelling agent wherein the inclusion of the gelling agent facilitates the retention of emollient oils particularly under high humidity and temperatures. Lipsticks of the present invention contain moisturizers which may be delivered to the lips in a non-polar/lipophilic medium in a thermodynamically stable way by using associated structures. A method of making the lipstick is also disclosed.
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 October 11, 1994 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2016.
- 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.