Lymphokine/cytokine genes
CA 2005639 A1 · Owner: Napolitano, Monica · Inventors: Kelley, Kathleen; Leonard, Warren J.; Irving, Steven G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Discoveries are disclosed that show particular aspects of recombinant DNA technology can be used successfully to produce hitherto unknown human lymphokine/cytokine-like proteins free of other lymphokines or cytokines. These proteins can be produced from DNA segments in cells or cell-free systems in various functional forms. These forms variously enable biochemical and functional studies of these novel proteins as well as production of antibodies. Means are described for determining the level of activation of genes for the lymphokine/cytokine-like proteins, for example by measuring, mRNA during mitogenic activation of isolated T cells or by measuring antigen secreted in extracellular or body …
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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 15, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2011.
- 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.