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Expired Canadian patentCanada

Polycationic buffers and method for gel electrophoresis of nucleic acids

CA 1319007 C · Owner: Abbott Laboratories · Inventors: Mandecki, Wlodek; Hayden, Mark A.

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Abstract From the Canadian patent

POLYCATIONIC BUFFERS AND METHOD FOR, GEL ELECTROPHORESIS OF NUCLEIC ACIDS" ABSTRACT, The present invention provides for polycationic buffers for the gel electrophoresis of and methods for obtaining improved separation and resolution of nucleic acids. In particular, the invention provides for a buffer consisting essentially of histidine for the gel electrophoresis of oligonucleotides ranging from a few to about 70 nucleotides in length. Polycationic buffers may be used for both analytical and preparative purposes and result in a nearly two-fold improvement in both separation and resolution of the nucleic acid bands. Furthermore, the use of polycationic buffers reduces the electrophoresis …

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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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1988
GrantedJune 15, 1993
Term endedJune 15, 2010
Patent numberCA 1319007 C
Classification (IPC)G01N27/26 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 26, 1988Patent grantedJune 15, 1993Term endedJune 15, 2010

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