Interleukin and its analogous immune regulating factors
CA 1193215 A · Owner: Shionogi & Co. Ltd. · Inventors: Kumagai, Katsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Interleukin-2 and macrophage activating factor (MAF) are produced by incubation of the human peripheral blood cells in the presence of the human lymphoblast cells and an interleukin inducer. Interleukin-2 and MAF are useful in treatment of infectious diseases caused by virus or bacteria or of malignant tumors. The yield is greatly increased by the present method.
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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
- Granted September 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2002.
- 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.