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Fusion protein construct and method for inducing hiv-specific serum igg and secretory iga antibodies in-vivo

CA 2441626 A1 · Owner: Kozlowski, Pamela · Inventors: Wiley, Don; Kozlowski, Pamela; Weissenhorn, Winfried

CIPO record

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

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Abstract From the Canadian patent

The present invention provides a fusion protein construct (gp41HA) consisting of the ectodomain of the HIV-1IIIB envelope glycoprotein gp41 fused to a fragment of the influenza virus HA2 hemagglutinin protein. Immunization invivo via an intraperitoneal prime followed by intranasal or intragastric boosts with gp41HA induces high concentrations of serum IgG antibodies and fecal IgA antibodies that reacted with gp41 in HIV-1IIIB viral lysate and are cross-reactive with gp41 in HIV-1MN lysate. Followup analyses by indirect immunofluorescence showed that both serum IgG and fecal IgA recognized human peripheral blood mononuclear cells infected with either syncytium-inducing (SI) or …

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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 March 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 2002
GrantedNo grant recorded
Term endedMarch 27, 2022
Patent numberCA 2441626 A1
Classification (IPC)C07K19/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 27, 2002Term endedMarch 27, 2022

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