Patent Yard Sign in
Expired Canadian patentCanada

Dna fragment encoding tumor cell growth inhibitors

CA 2124941 C · Owner: Yoshimoto, Makoto · Inventors: Komurasaki, Toshi; Hanada, Kazunori; Toyoda, Hitoshi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

DNA fragments encoding a tumor cell growth inhibitors and having a nucleotide sequence shown by formula (1) below, which are produced by preparing cDNA library from mRNA of the established 3T3 cell-derived cell line, amplifying various DNA fragments considered to encode the tumor cell growth inhibitors by the PCR method analyzing the nucleotide sequences of these DNA fragments and determining the nucleotide sequences of the DNA fragments encoding the inhibitors:, 27 GTG CAG ATT ACA AAG TGT AGT TCT GAC ATG GAC GGC TAC TGC 54 81, TTG CAT GGC CAG TGC ATC TAC CTG GTG GAC ATG AGA GAG AAA 108, TTC TGC AGA TGT GAA GTG GGC TAC ACT GGT CTG CGA TGT GAG CAC X ........... (1), wherein X represents TTC …

Read the whole patent

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 3, 1992 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 3, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 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.
FiledDecember 3, 1992
GrantedJuly 23, 2002
Term endedDecember 3, 2012
Patent numberCA 2124941 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 3, 1992Patent grantedJuly 23, 2002Term endedDec 3, 2012

Sources & verification

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