Live attenuated bacteria of the species actinobacillus pleuropneumoniae
CA 2228719 A1 · Owner: Frey, Joachim · Inventors: Segers, Ruud Philip Antoon Maria; Frey, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to live attenuated bacteria of the genus Actinobacillus pleuropneumoniae that have a mutation in an apxIV gene such that no functional ApxIV toxin can be produced. The invention also relates to methods for the production of such bacteria. Also vaccines comprising such bacteria and methods for the production of such vaccines are part of the invention. The invention further relates to subunit vaccines comprising an ApxIV toxin, to methods for the production of such vaccines and to methods for the protection of animals against infection with bacteria of the genus Actinobacillus pleuropneumoniae. In addition, the invention relates to the promotor of the apxIV gene. …
Read the whole patent
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 April 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.