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Expired Canadian patentCanada

Staining method for proteins and nucleic acids

CA 1265730 C · Owner: Moeremans, Marc Karel Julia Jozef · Inventors: De Mey, Jan Raoul; Moeremans, Marc Karel Julia Jozef; De Raeymaeker, Marc Carl

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Abstract From the Canadian patent

A process for staining proteins and nucleic acids wherein the stain is a suspension of colloidal metal particles and the proteins and nucleic acids are visualized as a coloured signal localized at the binding site of the colloidal metal particles to the proteins or nucleic acids or quantitatively determined at this site following art-known spectrophotometric procedures.

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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 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 2007.
  • 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 28, 1985
GrantedFebruary 13, 1990
Term endedFebruary 13, 2007
Patent numberCA 1265730 C
Classification (IPC)G01N33/52 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedMay 28, 1985Patent grantedFeb 13, 1990Term endedFeb 13, 2007

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