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Expired Canadian patentCanada

Process for the production of panosyl derivatives

CA 1333372 C · Owner: Keng, Jiun G. · Inventors: Keng, Jiun G.

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

This invention relates to an in vitro enzymatic process for the preparation of compounds containing the panosyl group. The panosyl group is transferred from a panosyl donor to a panosyl acceptor by means of an enzyme having panosyl transferase activity.

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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 December 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 6, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1987
GrantedDecember 6, 1994
Term endedDecember 6, 2011
Patent numberCA 1333372 C
Classification (IPC)C12P19/18 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJuly 29, 1987Patent grantedDec 6, 1994Term endedDec 6, 2011

Sources & verification

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