Sonophoresis skin care device
CA 2680675 C · Owner: Nonaka, Gen · Inventors: Matsumura, Yuko; Nonaka, Gen; Oba, Takafumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a device for penetrating a skin active agent to the human body via the skin by the use of an ultrasound applying apparatus which applies ultrasound to the human body via the skin comprising: (1) composition comprising: (a) safe and effective amount of the skin active agent; (b) a viscosifying agent that provides the composition of a viscosity of from about 1,000mPas to about 1,000,000mPas; (c) from about 0.1% to about 30% of a water- soluble humectant; and (d) an aqueous carrier; wherein the composition is substantially free of surfactants; and (2) the ultrasound applying apparatus comprising: (e) an application element for applying to the skin ultrasound at a frequency of from …
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 June 13, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2025.
- 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.