Self-indicating strip

Details Self-indicating strip Self-indicating strip

1988-10-06

1991-01-01

Wax, Robert A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 57, 422 58, 436810, 435804, G01N 3100

Patent

active

049816535

ABSTRACT:
The present invention relates generally to an analytical reagent test strip for assaying fluid samples. The reagent test strip of this invention has a self-indicating format which provides accurate and reliable results without the need for a color chart or instrument analysis. In the preferred embodiment of this invention, reagent threads are incorporated into and protrude through a polymer housing. The threads are placed in a particular pattern whereby different colored configurations will occur in response to different concentrations of analyte in a sample. The present invention is accurate, reliable and convenient to use.

REFERENCES:
patent: 2981606 (1961-04-01), Keston
patent: 3964871 (1976-06-01), Hochstrasser
patent: 4046514 (1977-09-01), Johnston et al.
patent: 4175923 (1979-11-01), Friend
patent: 4683209 (1987-07-01), Ismail et al.
patent: 4734360 (1988-03-01), Phillips

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