External therapeutic composition for dermatitis
CA 2173403 C · Owner: Yamada, Akira · Inventors: Yamada, Akira; Yamada, Hajime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an external therapeutic composition for dermatitis comprising an aqueous solution including a therapeutically effective amount of an adrenal cortical steroid a cyclodextrin, polysaccharides, and a carrier such as water prepared by clathrating the adrenal cortical steroid in the cyclodextrin using a homomixer to form a clathrate and adding the clathrate to an aqueous solution of polysaccharides while being stirred uniformly, to dissolve the clathrate in the aqueous solution as well as a method for the treatment of dermatitis in a mammalian subject which comprises administering to said subject a therapeupically effective amount of the external therapeutic …
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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 April 3, 1996 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.