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Expired Canadian patentCanada

Vaccines based on streptokinase

CA 2128247 C · Owner: Smithkline Beecham Corporation · Inventors: Leigh, James Andrew

CIPO record

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

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Abstract From the Canadian patent

A vaccine far use to treat or prevent a disease in a vertebrate the vaccine , comprising an antigenic entity and a carrier the, antigenic entity being adapted to cause following vaccination of the , vertebrate with the vaccine an immune response providing, antibodies which inhibit a factor from a pathogen which directly or indirectly causes breakdown of protein in the vertebrate wherein said breakdown enhances growth of the pathogen. A vaccine against the streptokinase of Streptococcus uberis can be used to prevent mastitis in cattle,

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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 January 18, 1993 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 1993
GrantedSeptember 10, 2002
Term endedJanuary 18, 2013
Patent numberCA 2128247 C
Classification (IPC)C12N15/58 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 18, 1993Patent grantedSep 10, 2002Term endedJan 18, 2013

Sources & verification

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