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Canadian application, no grantCanada

Non-b, non-c, non-g hepatitis virus gene, polynucleotide, polypeptide, virus particle, method for isolating virus particle, and method for detecting virus

CA 2298103 A1 · Owner: Okamoto, Hiroaki · Inventors: Nishizawa, Tsutomu; Okamoto, Hiroaki

CIPO record

Overview

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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 gene usable in diagnosis and therapy which is obtained by separating a novel hepatitis virus gene and specifying the gene sequence thereof. This gene is a non-B non-C non-G hepatitis virus gene having a base sequence involving a sequence consisting of about 3,500 to 4,000 bases which can be amplified by PCR by using as primers an oligonucleotide having the base sequence represented by SEQ ID NO:57 and another oligonucleotide having the base sequence represented by SEQ ID NO:60, or PCR by using as primers the oligonucleotide having the base sequence represented by SEQ ID NO:57 and another oligonucleotide having the base sequence represented by SEQ ID NO:61. Based on the base …

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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 July 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 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.
FiledJuly 27, 1998
GrantedNo grant recorded
Term endedJuly 27, 2018
Patent numberCA 2298103 A1
Classification (IPC)C12N15/51 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 27, 1998Term endedJuly 27, 2018

Sources & verification

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