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Expired Canadian patentCanada

Isolated bacillus 029 cel cellulase

CA 2523328 C · Owner: Grant, Susan · Inventors: Grant, Susan; Grant, William D.; Jones, Brian 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 present invention provides a novel cellulase nucleic acid sequence designated 029cel, and the corresponding 029cel amino acid sequence. The invention also provides expression vectors and host cells comprising a nucleic acid sequence encoding 029cel, recombinant 029cel proteins and methods for producing the same.

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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 April 28, 2004 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 28, 2004
GrantedJuly 3, 2012
Term endedApril 28, 2024
Patent numberCA 2523328 C
Classification (IPC)C12N15/56 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 28, 2004Patent grantedJuly 3, 2012Term endedApril 28, 2024

Sources & verification

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