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Expired Canadian patentCanada

Process for cell surface phenotyping of lymphocyte subpopulations

CA 1211047 A · Owner: Wistar Institute Of Anatomy And Biology (The) · Inventors: Wettstein, Peter J.

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Abstract From the Canadian patent

of the Invention, Cell surface phenotyping of lymphocyte subpopulations using polystyrene plates having a plurality of small wells is accomplished by introducing to the wells antibody molecules specific for cell-surface antigens, which adhere to or are absorbed to the well surfaces, introducing to the wells a predetermined quantity of peripheral blood lymphocyte cells, incubating the cells in the presence of a cell nutrient, removing nonadherent cells, introducing different antibodies to different wells introducing, complement to the wells, and determining the degree of lyis of the cells.

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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 September 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 11, 1983
GrantedSeptember 9, 1986
Term endedSeptember 9, 2003
Patent numberCA 1211047 A
Classification (IPC)G01N33/54 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJuly 11, 1983Patent grantedSep 9, 1986Term endedSep 9, 2003

Sources & verification

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