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Expired Canadian patentCanada

Bacteria with reduced genome

CA 2473922 C · Owner: Glasner, Jeremy D. · Inventors: Posfai, Gyorgy; Glasner, Jeremy D.; Blattner, Frederick R.

CIPO record

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Abstract From the Canadian patent

The present invention provides a bacterium having a genome that is genetically engineered to be at least 2 to about 20% smaller than the genome of its native parent strain. A bacterium with a smaller genome can produce a commercial product more efficiently. The present invention also provides methods for deleting genes and other DNA sequences from a bacterial genome. The methods provide precise deletions and seldom introduces mutations to the genomic DNA sequences around the deletion sites. Thus the methods can be used to generate , a series of deletions in a bacterium without increasing the possibility of undesired homologous recombination within the genome. In addition some of the …

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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 January 22, 2003 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 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.
FiledJanuary 22, 2003
GrantedSeptember 24, 2013
Term endedJanuary 22, 2023
Patent numberCA 2473922 C
Classification (IPC)C12N1/21 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJan 22, 2003Patent grantedSep 24, 2013Term endedJan 22, 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.