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Expired Canadian patentCanada

Fibrin binding polypeptides useful inter alia in medical imaging processes

CA 2432474 C · Owner: Sato, Aaron K. · Inventors: Beltzer, James P.; Wescott, Charles R.; Sato, Aaron K.

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Abstract From the Canadian patent

The present invention provides binding moieties for fibrin which have a variety of uses wherever detecting, isolating or localizing fibrin and , particularly fibrin as opposed to fibrinogen is advantageous. Particularly , disclosed are synthetic isolated polypeptides capable of binding fibrin and recognizing the form of polymerized fibrin found in thrombi. In addition the , polypeptides have a slow dissociation rate from fibrin which improves their , ability to form a contrast image at the site of a fibrin clot making the , disclosed binding moieties particularly useful as imaging agents for thrombi.

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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 December 21, 2001 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2023.
  • 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 21, 2001
GrantedJune 26, 2012
Term endedDecember 21, 2021
Patent numberCA 2432474 C
Classification (IPC)C07K7/06 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedDec 21, 2001Patent grantedJune 26, 2012Term endedDec 21, 2021

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