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Expired Canadian patentCanada

Human il-1 epsilon dna and polypeptides

CA 2340790 C · Owner: Smith, Dirk E. · Inventors: Smith, Dirk E.; Sims, John E.

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

The invention is directed to purified and isolated novel human IL-1 epsilon polypeptides, the nucleic acids encoding such polypeptides processes for production of recombinant forms of such polypeptides antibodies , generated against these polypeptides fragmented peptides, derived from these polypeptides the use of such polypeptides and fragmented peptides in cellular and immune reactions and as molecular weight markers, the use of such polypeptides and fragmented peptides as controls for peptide fragmentation, and kits comprising these reagents.

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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 20, 1999 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 20, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2021.
  • 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 20, 1999
GrantedJuly 10, 2012
Term endedAugust 20, 2019
Patent numberCA 2340790 C
Classification (IPC)C12N15/25 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedAug 20, 1999Patent grantedJuly 10, 2012Term endedAug 20, 2019

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