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Expired Canadian patentCanada

Virus-like particles for the induction of autoantibodies

CA 2347411 C · Owner: The Government Of The United States Of America · Inventors: Schiller, John T.; Chackerian, Bryce; Lowy, Douglas R.

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 invention described herein relates to compositions and methods for stimulating immune responses in vivo against a tolerogen. Novel biotechnological tools, pharmaceuticals therapeutics and prophylactics, which concern chimeric or conjugated virus-like particles and methods of use the , foregoing are provided for the study of B cell tolerance and the treatment or prevention of human diseases, which involve the onset of B cell tolerance such as chronic viral infection, chronic inflammatory disease and neoplasia.

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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 October 20, 1999 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1999
GrantedApril 3, 2012
Term endedOctober 20, 2019
Patent numberCA 2347411 C
Classification (IPC)C07K14/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedOct 20, 1999Patent grantedApril 3, 2012Term endedOct 20, 2019

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