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Expired Canadian patentCanada

Dnas and processes for their preparation, novel plasmids comprising themnovel polypeptides and processes for their preparation and novel anti-tumor agents comprising said polypeptides

CA 1340244 C · Owner: Tsuji, Yoshiaki · Inventors: Tsuji, Yoshiaki; Mizuno, Den'Ichi; Soma, Gen-Ichiro

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Abstract From the Canadian patent

Anti-tumor polypeptides represented by the amino sequence:, (The amino acid sequence of TH.beta.4)-Asp-Pro-X-(the amino acid sequence corresponding to the base sequence constructed by linking guanine with the beginning of the base sequence of the fourth exon of TNF-.alpha.), wherein X is a part of the linkage or represents any of the following amino acid sequences:, 1) Val-Ser-Ser-Ser-Arg-Thr-Pro-Ser-Asp-Lys-Pro-Val-Ala- His-Val-Val;, 2) Val-Arg-Ser-Ser-Ser-Arg-Thr-Pro-Ser-Asp-Lys-Pro-Val- Ala-His-Val-Val;, 3) Val-Lys-Ser-Cys-Thr-Arg-Thr-Pro-Ser-Arg-Lys-Pro-Val- Ala-His-Val-Val;, 4) Val-Arg-Ser-Ser-Thr-Arg-Thr-Pro-Ser-Arg-Lys-Pro-Val- Ala-His-Val-Val; and, 5) …

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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 December 15, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 3, 1989
GrantedDecember 15, 1998
Term endedDecember 15, 2015
Patent numberCA 1340244 C
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedApril 3, 1989Patent grantedDec 15, 1998Term endedDec 15, 2015

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