Alteration of rate and character of hair growth
CA 2122002 C · Owner: Handelman, Joseph H. · Inventors: Ahluwalia, Gurpreet S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The rate and character of mammalian hair growth is altered by the topical application to the skin of a composition containing an organic inhibitor of the enzyme L-asparagine synthetase. A topical composition for reducing the rate and altering the character of mammalian hair growth comprises a non-toxic dermatologically acceptable vehicle and from 0.1 to 30 % based on the total weight of the composition of an organic inhibitor of L-asparagine synthetase.
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 November 4, 1992 and granted December 16, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2014.
- 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.