Patent Yard Sign in
Expired Canadian patentCanada

Therepeutic nucleosides

CA 1340589 C · Owner: The Wellcome Foundation_Limited · Inventors: Daluge, Susan Mary

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The present invention relates to 6-substituted purine carbocyclic nucleosides and their use in medical therapy particularly in the treatment and prophylaxis of HIV anal HBV infections. Also provided are pharmaceutical formulations and processes for the preparation of compounds according to the invention.

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

  • Granted June 8, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 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.
FiledJune 23, 1989
GrantedJune 8, 1999
Term endedJune 8, 2016
Patent numberCA 1340589 C
Classification (IPC)C07D473/02 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedJune 23, 1989Patent grantedJune 8, 1999Term endedJune 8, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.