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:
Aug. 21, 1990
Filed:
May. 18, 1987
Applicant:
Inventors:
Russell S Travers, Takoma Park, MD (US);
Phyllis A Martin, Lanham, MD (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
424 93 ; 4351721 ; 4351723 ; 435242 ; 4352525 ; 435832 ;
Abstract
Methods and mutant Bacillus thuringiensis strains are provided for controlling lepidopteran insects. Sporogenic, crystalliferous mutant strains for B. thuringiensis having the identifying characteristics of NRRL B-18195, NRRL B-18196 and NRRL B-18197 are provided for use as biocontrol agents. Said strains have the ability to produce a bypyramidal crystal composed of toxic protein and require a leucine and valine containing nutrient medium for growth, sporulation and crystal production.