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Expired Canadian patentCanada

A packaging defective hiv provirus, cell lines, and uses thereof

CA 2009403 C · Owner: Dana Farber Cancer Institute · Inventors: Haseltine, William A.; Gottlinger, Heinrich; Lever, Andrew

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A packaging defective HIV vector is disclosed. This vector can be used to establish HIV packaging defective cell lines. These cell lines can be used in developing a vaccine, HIV antibodies and as part of a system for gene transfer.

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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

  • Filed February 6, 1990 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 6, 1990
GrantedOctober 31, 2000
Term endedFebruary 6, 2010
Patent numberCA 2009403 C
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 6, 1990Patent grantedOct 31, 2000Term endedFeb 6, 2010

Sources & verification

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