Expired Canadian patentCanada
Diamino-2,4-pyrimidine 3-oxide derivatives and their use for the prevention and treatment of hair loss
CA 1340445 C · Owner: Dumats, Jacqueline · Inventors: Dumats, Jacqueline; Gaetani, Quintino; Hocquaux, Michel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordRead 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 March 16, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 1, 1989
GrantedMarch 16, 1999
Term endedMarch 16, 2016
Patent numberCA 1340445 C
Classification (IPC)C07D239/48 +2 more
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.