The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1976
Filed:
Jan. 07, 1975
Ion Gresser, Paris, FR;
Michael G Tovey, Paris, FR;
Agence Nationale de Valorisation de la Recherche (ANVAR), Neuilly-sur-Seine, FR;
Abstract
This invention relates to the production of interferon. In accordance with the present invention, interferon is produced by growing a continuous cell line in a suspension culture, the cells first being primed by cultivation in the presence of interferon specific to the cells and L-glutamine, interferon production being initiated by contacting the cells with a high concentrated suspension of virus inducer, then removing the virus and incubating the cells in a nutrient medium. Concentration and purification to give interferon preparations can be effected by known methods. Various types of interferon preparations of high titre have been produced on an industrial scale.