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:
Feb. 28, 1978
Filed:
May. 02, 1975
Robert Fauve, Sevres, FR;
Institut Pasteur, Paris, FR;
Abstract
The immunostimulant agent is extracted from splenic cells of animal origin from Ehrlich ascites cells or from bacteria, such as Bacillus subtilis or Saccharomyces cerevisiae. A suspension of these cells or of these bacteria is formed with a mixture of solvents containing a halogenated hydrocarbon and an alcohol. The insoluble fractions are separated, the liquid fraction evaporated under reduced pressure and at reduced temperature, and the solid residue taken up again in chloroform. The chloroform solution containing the abovementioned immunostimulant agent is recovered by filtration. A suspension in an injectable liquid vehicle of the immunostimulant agent is in the form of particles or micelles whose dimensions are sufficiently small for said suspension to be injectable in man or animal.