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Expired Canadian patentCanada

Outer membrane protein of ehrlichia canis and ehrlichia chaffeensis

CA 2856898 C · Owner: Ohio State Research Foundation · Inventors: Rikihisa, Yasuko; Ohashi, Norio

CIPO record

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Abstract From the Canadian patent

The present invention relates to diagnostic tools for veterinary and human use which are used for serodiagnosing ehrlichiosis in mammals particularly in members of the Canidae family and in humans. The present invention also provides polynucleotides which encode the outer membrane proteins of E. chafeensis. The polynucleotides encode an OMP-1 family of proteins of E. chafeensis and P30 family of proteins of E. canis. The present invention also provides the following isolated proteins of E. chafeensis OMP-1 OMP-1A, OMP- 1B, OMP-1C, OMP-1D, OMP-1E OMP-1F, OMP-1R, OMP-1S, OMP-1T, OMP-1V OMP-1W, and OMP-1Z, referred to hereinafter collectively as the "OMP family". The present invention also …

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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 September 18, 1998 and granted November 13, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 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.
FiledSeptember 18, 1998
GrantedNovember 13, 2018
Term endedSeptember 18, 2018
Patent numberCA 2856898 C
Classification (IPC)C07K16/12 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedSep 18, 1998Term endedSep 18, 2018Patent grantedNov 13, 2018

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