Interleukin-2-leukotoxin gene fusions and uses therefor
CA 2089753 C · Owner: University Of Saskatchewan · Inventors: Campos, Manuel; Hughes, Huw P. A.; Potter, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New chimeric proteins, DNA encoding the same and, the use of these proteins in stimulating immunity against respiratory diseases such as pneumonia; including shipping fever pneumonia, are disclosed. The chimeric proteins include at least one epitope of leukotoxin fused to an active fragment of a cytokine. The chimeric proteins can be used in a vaccine composition. Also disclosed are methods of vaccination as well as methods of making the proteins employed in the vaccines.
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 August 22, 1991 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2013.
- 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.