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Expired Canadian patentCanada

Immunoassay for antibodies to htlv-iii

CA 1295551 C · Owner: Abbott Laboratories · Inventors: Dawson, George J.

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 invention is a diagnostic immunoassay which detects antibodies specific for human T-cell lymphotropic virus-III (HTLV-III). The immunoassay utilizes two detection systems each detection system designed to detect an antibody to a specific viral protein of HTLV-III.

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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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 1986
GrantedFebruary 11, 1992
Term endedFebruary 11, 2009
Patent numberCA 1295551 C
Classification (IPC)G01N33/56 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedDec 18, 1986Patent grantedFeb 11, 1992Term endedFeb 11, 2009

Sources & verification

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