Expired Canadian patentCanada
Antiherpes compositions and method of use
CA 2033448 C · Owner: Deziel, Robert · Inventors: Deziel, Robert; Guindon, Yvan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a combination of an antiviral nucleoside analog and a ribonucleotide reductase inhibiting peptide derivative. The combination is useful for combatting herpes infections.
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 December 31, 1990 and granted November 26, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 31, 1990
GrantedNovember 26, 1996
Term endedDecember 31, 2010
Patent numberCA 2033448 C
Classification (IPC)A61K8/60 +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.