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.

Date of Patent:
Aug. 07, 1990

Filed:

Oct. 11, 1985
Applicant:
Inventors:

Sophia A Lameris, The Hague, NL;

Jan L van Os, Voorburg, NL;

Joannes G Oostendorp, Rijswijk-ZH, NL;

Assignee:

Gist-Brocades N.V., Delft, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ; C12Q / ; C12N / ; C12M / ;
U.S. Cl.
CPC ...
435 29 ; 435 32 ; 435177 ; 4352525 ; 435299 ; 435810 ; 435832 ; 435839 ;
Abstract

The presence or absence of residues of an antibiotic such as penicillin is rapidly determined in a sample such as milk or meat. The sample is added to a test vessel containing a solidified agar medium containing spores of a microorganism which has high sensitivity for the antibiotic being determined. After addition of nutrients and incubation, presence or absence of the antibiotic is indicated by the extent of growth of the microorganism. The nutrients may be in the form of a tablet which may be placed on the surface of the solidified agar medium prior to use. The tablet may be coated with a layer preventing moisture transport from the medium into the tablet during storage, but allowing nutrient transport under test conditions. The extent of microorganism growth may be determined visually or indicated by an indicator present in the solidified agar medium or the nutrient tablet. The test vessel preferably has a cross-section of 3 to 20 mm and a height of 3 to 30 mm.


Find Patent Forward Citations

Lameris, Sophia. (1990). Method for determination of the presence of antibiotics (U.S. Patent No. 4946777). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4946777

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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