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Expired Canadian patentCanada

Antimicrobial compounds from bacillus subtilis for use against animal and human pathogens

CA 2503130 C · Owner: Teo, Alex Yeow-Lim · Inventors: Tan, Hai Meng; Seah Huay Lin, Angeline; Teo, Alex Yeow-Lim

CIPO record

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Abstract From the Canadian patent

Antimicrobial compounds from Bacillus subtilis for use against animal and human pathogens. A novel strain of Bacillus subtilis was isolated from the gastrointestinal tract of poultry and was found to produce a factor or factors that have excellent inhibitory effects on Clostridium perfringens Clostridium , difficile, Campylobacter jejuni Campylobacter coli, and Streptococcus pneumoniae. The factor(s) retain full viability and antimicrobial activity after heat treatment. The invention provides a method of treatment of pathogenic microorganisms including C. perfringens.

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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 November 12, 2003 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 2003
GrantedMarch 13, 2012
Term endedNovember 12, 2023
Patent numberCA 2503130 C
Classification (IPC)C12P1/04 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 12, 2003Patent grantedMarch 13, 2012Term endedNov 12, 2023

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