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Expired Canadian patentCanada

Molecular vaccine linking an endoplasmic reticulum chaperone polypeptide to an antigen

CA 2417214 C · Owner: Johns Hopkins University · Inventors: Wu, Tzyy-Choou; Hung, Chien-Fu

CIPO record

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Abstract From the Canadian patent

This invention provides compositions and methods for inducing and enhancing immune responses, such as antigen-specific cytotoxic T lymphocyte (CTL) responses, using chimeric molecules comprising endoplasmic reticulum chaperone polypeptides and antigenic peptides. In particular the invention provides , compositions and methods for enhancing immune responses induced by polypeptides made in vivo by administered nucleic acid such as naked DNA or , expression vectors encoding the chimeric molecules. The invention provides a method of inhibiting the growth of a tumor in an individual. The invention also provides novel self-replicating RNA virus constructs for enhancing immune responses …

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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 August 2, 2001 and granted June 21, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 2, 2001
GrantedJune 21, 2016
Term endedAugust 2, 2021
Patent numberCA 2417214 C
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 2, 2001Patent grantedJune 21, 2016Term endedAug 2, 2021

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