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:
Jun. 20, 2000
Filed:
Apr. 24, 1995
Applicant:
Inventors:
Kakambi V Nagaraja, St. Paul, MN (US);
Daryll Emery, Hugo, MN (US);
Assignee:
Regents of the University of Minnesota, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C12P / ; C12P / ;
U.S. Cl.
CPC ...
4242571 ; 435 681 ; 435 691 ; 435 70 ; 435 711 ; 435320 ;
Abstract
A vaccine for the immunization of domestic fowl, such as turkeys and chickens, against E. coli infections (Colibacillosis) is disclosed which contains an effective amount of a live temperature sensitive mutant of E. coli dispersed in a physiologically acceptable, non-toxic liquid vehicle. The E. coli mutant disclosed exhibits growth at 32.degree. C. but not at 41.degree. C. and has a reversion frequency of less than about 1.times.10.sup.-8.