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Expired Canadian patentCanada

Sterol regulatory elements

CA 1300533 C · Owner: Board Of Regents, The University Of Texas System · Inventors: Sudhof, Thomas C.; Brown, Michael S.; Goldstein, Joseph L.

CIPO record

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Abstract From the Canadian patent

Disclosed are discreet functionally translocatable DNA segments, termed Sterol Regulatory Elements (SRE's) which are fused to heterologous structural genes to provide sterol regulatory capability to the thus formed hybrid gene. The hybrid genes respond to sterols by decreasing the production of messenger RNA. The SRE segments contain as their primary functional nucleotide sequence, a 16 bp sequence referred to as direct repeat 2 isolated from the 5' regions of the human LDL receptor gene. DNA segments which include this 16 nucleotide long sequence similarly confer sterol regulatory capability to previously known promoters such as the HSV TK promoter. Also disclosed are discreet sequences …

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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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
  • 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 30, 1988
GrantedMay 12, 1992
Term endedMay 12, 2009
Patent numberCA 1300533 C
Classification (IPC)C12N15/63 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMarch 30, 1988Patent grantedMay 12, 1992Term endedMay 12, 2009

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