Canadian application, no grantCanada
New benzoxazoles with pde-inhibiting activity
CA 2336894 A1 · Owner: Altana Pharma Ag · Inventors: Martin, Thomas
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I) in which R1, R2 R3 and A have the meanings indicated , in the description are novel efficacious PDE inhibitors.
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 June 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.
FiledJune 26, 1999
GrantedNo grant recorded
Term endedJune 26, 2019
Patent numberCA 2336894 A1
Classification (IPC)C07D413/04 +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.