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Expired Canadian patentCanada

Technetium-99m labeled peptides for imaging

CA 2124458 C · Owner: Diatide, Inc. · Inventors: Mcbride, William; Dean, Richard T.; Buttram, Scott

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 relates to radiolabeled imaging of a mammalian body. The invention in particular provides for reagents labeled with technetium-99m for such imaging. The invention provides peptides which bind Tc-99m and which can be targeted to specific sites within a mammalian body.

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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 November 19, 1992 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 19, 1992
GrantedJanuary 30, 2001
Term endedNovember 19, 2012
Patent numberCA 2124458 C
Classification (IPC)C07K4/00 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 19, 1992Patent grantedJan 30, 2001Term endedNov 19, 2012

Sources & verification

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