Preparation for prevention and treatment of acne vulgaris and use of pyridine aldehydes for the prevention and treatment of acne vulgaris
CA 1095413 A · Owner: Klosa, Josef · Inventors: Klosa, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to apreparation for the prevention and treatment of acne vulgaris in the form of a solution a jelly, a lotion, a cream or salve or powder characterized by a content, of an effective amount of a pyridine aldehyde having the general formula, where n has the value 0 or 1, the aldehyde group being in the 2- 3- or 4-position and the methyl group being in the 2- or 6poition, and a content of a pharmaceutically compatible carrier or diluent.
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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 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 10, 1998.
- 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.