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Expired Canadian patentCanada

Receptor-mediated uptake of peptides that bind the human transferrin receptor

CA 2449412 C · Owner: Engler, Jeffrey · Inventors: Engler, Jeffrey; Lee, Jae, Hwy; Moore, Bryan

CIPO record

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Abstract From the Canadian patent

Peptides have been discovered which are capable of binding to and internalizing with the human transferrin receptor (hTfR). The sequences HAIYPRH (Seq. ID No. 1) and THRPPMWSPVWP (Seq. ID No. 2) are capable of binding to and internalizing with the human transferrin receptor. When these molecules were fused with other molecules the fusion product was internalized , in cells expressing hTfR. The sequences have use for targeting other peptides and proteins into cells expressing hTfR.

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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 29, 2001 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.
FiledNovember 29, 2001
GrantedApril 2, 2013
Term endedNovember 29, 2021
Patent numberCA 2449412 C
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 29, 2001Patent grantedApril 2, 2013Term endedNov 29, 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.