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Canadian application, no grantCanada

Monoclonal antibodies to avermectins

CA 2039541 A1 · Owner: Jacobson, Ethel B. · Inventors: Jacobson, Ethel B.; Marburg, Stephen

CIPO record

Overview

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

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Abstract From the Canadian patent

Novel monoclonal antibodies immunospecific for compounds of the avermectin complex are disclosed. A unique hybridoma cell line which produces the immunospecific monoclonal antibodies. The anti-avermectin monoclonal antibodies are used therapeutically to treat avermectin poisoning and serologically to identify and quantitate avermectins in animal body fluids.

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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 April 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 2, 1991
GrantedNo grant recorded
Term endedApril 2, 2011
Patent numberCA 2039541 A1
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 2, 1991Term endedApril 2, 2011

Sources & verification

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