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Expired Canadian patentCanada

Human b lymphotropic virus (hblv) isolation and products

CA 1340403 C · Owner: Gallo, Robert C. · Inventors: Salahuddin, Syed Zaki; Gallo, Robert C.

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Abstract From the Canadian patent

A new human B-lymphotropic virus (HBLV) has been isolated. DNA molecular, clones, antigenic viral proteins and antibodies having specificity to the new virus have been prepared. A method for obtaining HBLV particles has the steps of growing a co-culture of infected patient blood with uninfected suitable target cells, isolating infected cells from the culture cell cloning multiplying the infected cells by serial transmission isolating a virus from, the infected cell culture and concentrating the virus. Various utilities of the new virus and products derived therefrom are described. Methods for detecting the presence of HBLV in a patient suffering from acquired immune deficiency syndrome; and …

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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 23, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 4, 1987
GrantedFebruary 23, 1999
Term endedFebruary 23, 2016
Patent numberCA 1340403 C
Classification (IPC)C12N15/38 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006200920122015Application filedAug 4, 1987Patent grantedFeb 23, 1999Term endedFeb 23, 2016

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