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Expired Canadian patentCanada

Peptide derivatives

CA 1340985 C · Owner: Albert, Rainer · Inventors: Prikoszovich, Walter; Bauer, Wilfried; Mergler, Monika

CIPO record

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Abstract From the Canadian patent

The present invention provides a sugar derivative of a biologically active peptide, which derivative has a prolonged duration of action when compared to the non-sugar modified peptide, and contains at least on one of the amino acid units a sugar residue which is attached to an amino group thereof by a coupling other than a direct N-glycosidic bond, and additionally, when it is a condensation product of a carboxyl group containing sugar and a peptide with less than 8 amino acid units by a coupling, other than a direct amide bond.

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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 May 9, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 9, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 13, 1987
GrantedMay 9, 2000
Term endedMay 9, 2017
Patent numberCA 1340985 C
Classification (IPC)C07K14/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006200920122015Application filedOct 13, 1987Patent grantedMay 9, 2000Term endedMay 9, 2017

Sources & verification

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