Topical treatment of dry skin
CA 1161761 A · Owner: Yu, Ruey J. · Inventors: Van Scott, Eugene J.; Yu, Ruey J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Preventive as well as therapeutic. treatment to alleviate the symptoms of disorders characterized by cracking flaking, or scaling of the skin consisting of the topical application of a solution, lotion, gel, stick, powder cream or ointment, containing as active ingredients one or more hydroxy acid or its analogue is disclosed. The hydroxyacid and its analoyues include free acid, amide, lactone, ester anhydride, organic or, inorganic salt form of hydroxymonocarboxylic acids hydroxy-, dicarboxylic acids, hydroxytricarboxylic acids and keto acids. The therapeutic composition may include one or more of the compounds present in the total amount of from 0.1 to 20 percent. Topical application to …
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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
- Granted February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
- 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.