Hepatitis e virus vaccine and method
CA 2125701 A1 · Owner: Reyes, Gregory R. · Inventors: Purdy, Michael A.; Tam, Albert W.; Reyes, Gregory R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Antigen and antibody vaccine compositions effective in preventing hepatitis E virus (HEV) infection are disclosed. The antigen composition includes a peptide corresponding to a carboxyl terminal end region of the capsid protein encoded by the second open reading frame (2) of the HEV genome. The composition is effective in preventing HEV infection after vaccination. The antibody composition contains an antibody effective to block HEV infection of human primary hepatocytes in culture.
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 January 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.