Method and apparatus for the stimulation of hair growth
CA 2465906 C · Owner: L'Oreal Sa · Inventors: Mcdaniel, David H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for producing hair growth stimulation using light energy topical , compositions, and combinations thereof. By using photomodulation resulting from cellular responses to exposure to specific wavelengths of light optionally in conjunction with topical compositions and procedures for enhancing the penetration of such compositions hair follicles are activated , to produce hair growth.
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 8, 2002 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2024.
- 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.