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:
Mar. 27, 1990
Filed:
May. 11, 1987
Applicant:
Inventors:
Paul Leibowitz, Hackensack, NJ (US);
Yair Alroy, Parsippany, NJ (US);
Assignee:
Schering Corporation, Kenilworth, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07K / ;
U.S. Cl.
CPC ...
530351 ; 530395 ; 530412 ; 530418 ; 530419 ; 530422 ; 530427 ; 530825 ; 435 695 ;
Abstract
A method of extracting granulocyte macrophage colony stimulating factor (GM-CSF) from GM-CSF-expressing bacterial cells comprising treating a suspension of GM-CSF-containing bacterial cells with an acid and an enhancing agent, removing substantially all of the suspension liquid from the cells, preparing a second suspension of the acidified cells, neutralizing said second suspension, and separating the GM-CSF containing liquid from the suspended cells.