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Expired Canadian patentCanada

Therapeutic monoclonal antibodies that neutralize botulinum neurotoxins

CA 2492883 C · Owner: Amersdorfer, Peter · Inventors: Amersdorfer, Peter; Marks, James D.

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

This invention provides antibodies that specifically bind to and neutralize botulinum neurotoxin type A (BoNT/A) and the epitopes bound by those antibodies. The , antibodies and derivatives thereof and/or other antibodies that specifically bind to the , neutralizing epitopes provided herein can be used to neutralize botulinum neurotoxin and , are therefore also useful in the treatment of botulism.

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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 1, 2003 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2025.
  • 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 1, 2003
GrantedOctober 2, 2012
Term endedAugust 1, 2023
Patent numberCA 2492883 C
Classification (IPC)C07K16/12 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 1, 2003Patent grantedOct 2, 2012Term endedAug 1, 2023

Sources & verification

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