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Expired Canadian patentCanada

Process for inducing cytochrome p-450 enzymes in streptomyces bacteria and determining the mutagenicity of chemicals

CA 1329162 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Omer, Charles Anthoney; Viitanen, Paul Veikko; Buchholz, Steven Edward

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Abstract From the Canadian patent

TITLE, Process for Inducing Cytochrome P-450 Enzymes in Streptomyces Bacteria and Determining the Mutagenicity of Chemicals, ABSTRACT, A process for inducing cytochrome P-450 enzyme production in bacteria of the genus Streptomyces using inducers such as soybean flour, genistein or genistin is described. Uses for the cytochrome P-450 enzymes produced are also discussed as is a process for using genetically engineered Streptomyces to determine the mutagenicity of chemicals.

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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 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1989
GrantedMay 3, 1994
Term endedMay 3, 2011
Patent numberCA 1329162 C
Classification (IPC)C12N1/20 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJune 16, 1989Patent grantedMay 3, 1994Term endedMay 3, 2011

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