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Canadian application, no grantCanada

Mosaic protein and restriction endonuclease assisted ligation method for making the same

CA 2301776 A1 · Owner: The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services, Centers For Disease Control And Prevention · Inventors: Fields, Howard A.; Khudyakov, Yury E.

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 mosaic protein comprising a variety of immunoreactive antigenic epitopes from several genotypes of hepatitis C virus. The mosaic protein provides a sensitive and specific immunological hepatitis detection assay. A restriction enzyme assisted ligation method of making an artificial gene permits controlled construction of mosaic proteins and allows confirmatory expression , of the intermediate gene products.

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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 August 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2020.
  • 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 21, 1998
GrantedNo grant recorded
Term endedAugust 21, 2018
Patent numberCA 2301776 A1
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 21, 1998Term endedAug 21, 2018

Sources & verification

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