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Expired Canadian patentCanada

Cdnas coding for members of the carcinoembryonic antigen family

CA 1340787 C · Owner: Kamarck, Michael E. · Inventors: Kamarck, Michael E.; Elting, James J.; Barnett, Thomas R.

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Abstract From the Canadian patent

A nucleic acid comprising a base sequence which codes for a CEA family member peptide sequence or nucleic acids having a base sequence hybridizable therewith replicable recombinant cloning vehicles having an insert comprising such nucleic acid, cells transfected infected, or injected with such cloning vehicles polypeptides, expressed by such cells, synthetic peptides derived from the coding sequence of CEA family member nucleic acids antibody preparations specific for such polypeptides immunoassays for detecting CEA family members using such antibody preparations and nucleic acid hybridization methods for detecting CEA family member nucleic acid sequences using a nucleic acid probe …

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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

  • Granted October 12, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1989
GrantedOctober 12, 1999
Term endedOctober 12, 2016
Patent numberCA 1340787 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMay 31, 1989Patent grantedOct 12, 1999Term endedOct 12, 2016

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