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. 24, 1998
Filed:
Nov. 22, 1996
Applicant:
Inventors:
Tina Kangas Vandyk, Wilmington, DE (US);
Lorraine Winona Wagner, Newark, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12Q / ; C12Q / ;
U.S. Cl.
CPC ...
435-732 ; 435-6 ; 435-8 ; 4352523 ; 935 72 ; 935 73 ;
Abstract
A reagent, useful in the detection of environmental insults comprising bacterial cells containing a stress promoter operably linked to a lux gene complex has been prepared by lyophilizing the cells in a specified medium. The reagent may be used immediately upon rehydration where a positive test for the presence of an environmental insult is given by an increase in light production from the cells.