Beta-cyclodextrin as anti-acne agent
CA 1161364 A · Owner: Koch, Jurgen · Inventors: Koch, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a medication for the treatment of acne characterized in that it contains a mixture of beta-cyclodextrin with one or more carriers and that the mixture contains no organic substances with a molecular weight in the range of 100 to 10000 daltons other than, at most, 1 percent of a preserving agent.
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
- Granted January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 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.