Color-coded test strip

  • US 6,046,058 A
  • Filed: 11/20/1998
  • Issued: 04/04/2000
  • Est. Priority Date: 11/20/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A test device comprising:

  • a housing anda test strip within said housing, said strip containing immunoreagents thereon and said strip having a colored reference line formed either by antigen or antibody which are immobilized on the strip for indicating the viability of the test strip prior to testing and at least one reaction zone, said at least one reaction zone having means for detecting the presence or absence of a substance in a fluid sample.

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