Methods of preventing and reducing the size of striae distensae lesions
CA 2065412 C · Owner: Kligman, Albert M. · Inventors: Kligman, Albert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Striae distensae lesions may be prevented and/or reduced in size by topically applying to the skin affected with the lesions an effective amount of a retinoid; preferably retinoic acid; preferably by daily application in a dermatologically acceptable vehicle, such as a cream base, at a concentration of about 0.025 to 0.1 weight percent retinoic acid. When applied during the striae rubrae stage, the retinoid maybe effective to prevent the formation of striae albae lesions, and when applied in either stage the , retinoid may be effective to reduce the width and depth of the lesions with , improved texture and softness.
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 August 30, 1990 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2012.
- 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.