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Expired Canadian patentCanada

Cloning and expression of ligninase

CA 1338469 C · Owner: Jackson, Jennifer A. · Inventors: Farrell, Roberta L.; Rusche, James R.; Javaherian, Kashayar

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 recombinant ligninase enzyme is obtained by cloning a DNA sequence of P. chrysosporium encoding a ligninase apoprotein expressing the recombinant apoprotein in suitable host cells and reconstituting the recombinant ligninase protein with the heme.

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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 July 23, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2013.
  • 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 11, 1987
GrantedJuly 23, 1996
Term endedJuly 23, 2013
Patent numberCA 1338469 C
Classification (IPC)C12N15/53 +2 more

Timeline

Timeline From CIPO dates

198819911994199720002003200620092012Application filedSep 11, 1987Patent grantedJuly 23, 1996Term endedJuly 23, 2013

Sources & verification

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