Canadian application, no grantCanada
13-dihydro-3'aziridino anthracyclines
CA 2293453 A1 · Owner: Pharmacia & Upjohn S.P.A. · Inventors: Caruso, Michele; Ripamonti, Marina; Geroni, Maria Cristina
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Anthracycline glycosides of formula (I) wherein the wavy line means that the hydroxy group at 13-position may be at .alpha. or .beta. position or a , mixture thereof, are useful as anti-tumor agents.
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 April 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 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.
FiledApril 9, 1999
GrantedNo grant recorded
Term endedApril 9, 2019
Patent numberCA 2293453 A1
Classification (IPC)C07H15/25 +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.