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Expired Canadian patentCanada

Spiramycin resistance-conferring cloning vectors

CA 1297433 C · Owner: Richardson, Mark Alan · Inventors: Richardson, Mark Alan

CIPO record

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Abstract From the Canadian patent

X-7189, Abstract, novel gene conferring resistance to spiramycin in Streptomyces and related organisms was cloned from a genomic library of Streptomyces ambofaciens DNA. A thirty-one Kb fragment of S. ambofaciens DNA surrounding the spiramycin-resistance gene was isolated from this library on a cosmid designated pKC592. The novel spiramycin-resistance gene can be isolated on an ?2.9 Kb BamHI fragment by subcloning restriction fragments obtained from the pKC592 insert DNA. This BamHI fragment contains all of the information required for the expression of the spiramycin resistant phenotype in Streptomyces. Vectors and transformants containing the novel spiramycin resistance gene are provided.

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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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 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.
FiledApril 11, 1988
GrantedMarch 17, 1992
Term endedMarch 17, 2009
Patent numberCA 1297433 C
Classification (IPC)C12N15/66 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 11, 1988Patent grantedMarch 17, 1992Term endedMarch 17, 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.