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Expired Canadian patentCanada

A method for promoting enzyme diversity

CA 2223716 C · Owner: Wohlstadter, Jacob N. · Inventors: Wohlstadter, Jacob N.

CIPO record

Overview

Drawings and full text

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 a method for generating novel catalysts; particularly high turnover rate enzymes or biocatalysts. Functional catalytic units may be integrated into the germline composition of an animal in order to generate such novel catalysts.

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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 June 6, 1996 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1996
GrantedMarch 13, 2012
Term endedJune 6, 2016
Patent numberCA 2223716 C
Classification (IPC)C12N15/52 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 6, 1996Patent grantedMarch 13, 2012Term endedJune 6, 2016

Sources & verification

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