Patent · US Expired

Changeable machine readable assaying indicia

US5902982A · kind A · utility

85Cited by
2References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 18, 1998
Grant dateMay 11, 1999
Priority date
Expiry dateFeb 18, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG16H10/65
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A machine readable assaying system including an assay card having a machine readable assaying indicia located upon a surface of the card. At least one analysis element is provided with the assaying indicia, and is capable of monitoring a parameter to detect and optically signal the presence or absence of a desired state. The analysis elements composing, at least in part, an assaying mechanism in the form a pattern of elements, generally additionally including at least one fixed element, and or at least one blank region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.