Cosmetic make-up composition containing a transparent titanium oxide and silicon oxide pigment
CA 2107093 C · Owner: L'Oreal · Inventors: Defossez, Beatrice; Rossignol, Sylvie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cosmetic make-up composition containing in a suitable cosmetic carrier, a transparent pigment consisting of at least 60 wt % laminar titanium oxide and at most 10 wt % silicon oxide wherein the average pigment size is 1-300 mum and the thickness is 0.001-0.3 mum. Excellent cosmetic properties regarding pearlizing coverage, spreadability and smoothness are obtained.
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 January 29, 1993 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2015.
- 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.