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Canadian application, no grantCanada

Recombinant dimeric envelope vaccine against flaviviral infection

CA 2298538 A1 · Owner: Hawaii Biotech, Inc. · Inventors: Peters, Iain D.; Harada, Kent E.; Ivy, John M.

CIPO record

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Abstract From the Canadian patent

The present invention discloses and claims vaccines containing as an active , ingredient, a secreted recombinantly produced dimeric form of a truncated flaviviral envelope protein. The vaccines are capable of eliciting the production of neutralizing antibodies against flaviviruses. One embodiment of the present invention is directed to a vaccine for protection of a subject against infection by dengus virus. The dimeric truncated E is secreted as a recombinantly produced protein from eukaryotic cells. The vaccine may further contain portions of additional dengue virus serotype dimeric E proteins similarly produced. Another embodiment of the present invention is directed to methods to …

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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 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2020.
  • 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 27, 1998
GrantedNo grant recorded
Term endedJuly 27, 2018
Patent numberCA 2298538 A1
Classification (IPC)A61K39/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 27, 1998Term endedJuly 27, 2018

Sources & verification

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