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:
Jul. 28, 1987
Filed:
Apr. 03, 1985
Applicant:
Inventors:
Assignee:
Smith Kline RIT, S.A., , BE;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
530371 ; 424 88 ; 424 89 ; 530414 ; 530419 ; 530420 ; 530421 ; 530424 ; 530806 ;
Abstract
The process is applicable to the supernatant of engineered yeast cells disrupted in the presence of a non-ionic detergent: it comprises the precipitation of contaminants by polyethylene glycol and the treatment cation or, after eventual ultrafiltration, with ammonium sulfate.