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Expired Canadian patentCanada

Appartus and method for performing automated amplification of nucleic acid sequences and assays using heating and cooling steps

CA 1339653 C · Owner: Mezei, Louis M. · Inventors: Leath, Richard A.; Mezei, Louis M.; Johnson, Larry J.

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Abstract From the Canadian patent

There is disclosed herein a machine for performing nucleic acid amplification under computer control. The machine utilizes any one of a number of heating and cooling systems under control of a host computer which directs the heating and cooling systems to heat and cool a reaction-chamber-containing heat exchanger at appropriate times in the process. The reaction chambers are pre-loaded with the nucleic acid(s) to be amplified, a thermostable enzyme to catalyze polymerization, specific oligonucleotide primers and four different, nucleotide triphosphates. Also disclosed is the process for the amplification chain reaction implemented by the machine which, utilizes a thermostable enzyme.

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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 February 3, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 3, 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.
FiledJanuary 30, 1987
GrantedFebruary 3, 1998
Term endedFebruary 3, 2015
Patent numberCA 1339653 C
Classification (IPC)C12M1/40 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006200920122015Application filedJan 30, 1987Patent grantedFeb 3, 1998Term endedFeb 3, 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.