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Expired Canadian patentCanada

Antigen-presenting capsid with fusion ms2-coat protein

CA 2101070 C · Owner: British Technology Group Limited · Inventors: Talbot, Simon J.; Stockley, Peter G.; Mastico, Robert A.

CIPO record

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Abstract From the Canadian patent

A chimaeric protein, suitable for incorporation in a vaccine and capable of forming parts of a capsid assembly, comprises the amino acid sequence of the coat, protein of phage MS-2, or a conservatively modified variant thereof or , sufficient of, said sequence or variant to retain capsid-forming capability which amino acid , se-, quence has been modified by insertion of a foreign epitope in the region correspond-, ing to a protuberant protein hairpin in the capsid assembly as shown in the crystal, structure of the intact phage.

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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 22, 1992 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2014.
  • 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 22, 1992
GrantedApril 1, 2003
Term endedJanuary 22, 2012
Patent numberCA 2101070 C
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJan 22, 1992Patent grantedApril 1, 2003Term endedJan 22, 2012

Sources & verification

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