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. 08, 1994
Filed:
Apr. 11, 1990
Applicant:
Inventor:
Anthony B Schryvers, Calgary, CA;
Assignee:
The Board of Governors of the University, Alberta, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; C07C / ;
U.S. Cl.
CPC ...
530413 ; 530395 ; 530394 ; 530380 ; 530350 ; 530400 ; 530412 ; 530414 ; 424 92 ;
Abstract
The present invention relates to a method for isolating and purifying transferrin and lactoferrin receptor proteins from bacterial pathogens by affinity chromatography and to the preparation of vaccine antigens containing the purified receptor proteins.