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Expired Canadian patentCanada

Immunoassay for the detection of a-haloacetamides

CA 1340525 C · Owner: Gross, Cindy Jo · Inventors: Flaherty, Dennis Keith; Winzenburger, Peggy Ann; Gross, Cindy Jo

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The disclosure herein relates to antigens antibodies, antisera and diagnostic assay kits used in an enzyme-linked immunosorbent assay (ELISA) for .alpha.-haloacetamide herbicides.

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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

  • Granted May 4, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2016.
  • 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 21, 1989
GrantedMay 4, 1999
Term endedMay 4, 2016
Patent numberCA 1340525 C
Classification (IPC)C07K16/44 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedApril 21, 1989Patent grantedMay 4, 1999Term endedMay 4, 2016

Sources & verification

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