Canadian application, no grantCanada
1-phenyl substituted-1h, 3h-thiazole 3,4-a benimidazoles, process for their preparation and pharmaceutical compositions containing them
CA 2047796 A1 · Owner: Zappala, Maria · Inventors: Grasso, Silvana; Monforte, Pietro; Romeo, Giovanni
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-Phenyl substituted-1H,3H-thiazole 3,4-a benzimidazoles are prepared by reaction of o.phenilendiamine with a substituted benzaldehyde and with 2-mercaptoacetic acid. The new compounds are antiviral products.
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 July 24, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 24, 1991
GrantedNo grant recorded
Term endedJuly 24, 2011
Patent numberCA 2047796 A1
Classification (IPC)C07D513/04 +1 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.