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Expired Canadian patentCanada

Parathryoid-specific radioimaging techniques

CA 1309959 C · Owner: Morrissey, Jeremiah J. Iv · Inventors: Wells, Samuel A. Jr.; Welch, Michael J.; Morrissey, Jeremiah J. Iv

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

Abstract, A method to radio-image parathyroid tissue using radioisotopes which are detectable by scintigraphy employs novel monoclonal antibodies or their fragments which are specifically reactive with parathyroid antigen.

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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 November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 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 12, 1986
GrantedNovember 10, 1992
Term endedNovember 10, 2009
Patent numberCA 1309959 C
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedDec 12, 1986Patent grantedNov 10, 1992Term endedNov 10, 2009

Sources & verification

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