Detection of contaminants in food
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 2001
Grant Date -
N/A
app pub date -
Jul 12, 1999
filing date -
May 19, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A food contamination detector. The food contamination detector comprises a first bar code symbol coded to identify a food product by a bar code reader, a second bar code symbol coded to identify contaminated food by a bar code reader, and an indicator printed onto a substrate which changes color when food is contaminated and causes the first bar code symbol to be unreadable by a bar code reader and causes the second bar code symbol to become readable by a bar code reader.
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