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Expired Canadian patentCanada

Formulated medicines for enhancing the efficacy of beta-lactam antibiotics in prophylaxis and treatment against infectious disease due to pathogenic bacteria

CA 2031746 C · Owner: Ando, Kunio · Inventors: Goto, Sachiko; Ando, Kunio

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

Lactoferrin can be used to increase the efficacy of beta-lactam antibiotics. There is a synergistic effect when lactoferrin is administered either simultaneous with or shortly before or after the administration of beta-lactam antibiotics. The dosage of lactoferrin administered is usually 0.5-100 mg/kg and preferably 1-10 mg/kg.

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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 December 7, 1990 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 7, 1990
GrantedNovember 16, 1999
Term endedDecember 7, 2010
Patent numberCA 2031746 C
Classification (IPC)A61K38/40

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedDec 7, 1990Patent grantedNov 16, 1999Term endedDec 7, 2010

Sources & verification

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