Canadian application, no grantCanada
Pharmaceutical compositions for the treatment of itching comprising pgd2 receptors antagonists
CA 2333868 A1 · Owner: Arimura, Akinori · Inventors: Arimura, Akinori
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PGD2 antagonists, for example, compounds represented by general formula (IA-a- 5), pharmaceutically acceptable salts thereof or hydrates of the same which have an excellent effect of preventing or treating itching and therefore are useful as drugs.
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 May 28, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 1999
GrantedNo grant recorded
Term endedMay 28, 2019
Patent numberCA 2333868 A1
Classification (IPC)A61K45/00 +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.