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Expired Canadian patentCanada

Polypeptides having neutrophil stimulating activity

CA 2402238 C · Owner: Mukai, Hidehito · Inventors: Nishi, Yoshisuke; Mukai, Hidehito; Munekata, Eisuke

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Abstract From the Canadian patent

A factor capable of attracting and activating neutrophils which might be prepared by normal cells. A polypeptide having an activity of stimulating neutrophils is isolated from an extract obtained from healthy swine heart. Namely, provision is made of: (a) a polypeptide comprising the amino acid sequence represented by SEQ ID NO:1; (b) a polypeptide comprising an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO:1 by deletion, substitution or insertion of one to several amino acids and having the activity of stimulating neutrophils; and (c) a polypeptide comprising an amino acid sequence which is biologically equivalent to the amino acid sequence of …

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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 March 6, 2001 and granted December 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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.
FiledMarch 6, 2001
GrantedDecember 13, 2011
Term endedMarch 6, 2021
Patent numberCA 2402238 C
Classification (IPC)C12N15/12 +2 more

Timeline

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2002200420062008201020122014201620182020Application filedMarch 6, 2001Patent grantedDec 13, 2011Term endedMarch 6, 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.