Signals and indicators – Indicators
Reexamination Certificate
2005-04-07
2009-11-03
Smith, R. A. (Department: 2841)
Signals and indicators
Indicators
C215S374000, C040S324000
Reexamination Certificate
active
07610872
ABSTRACT:
A kit and method of blind comparison utilizing glass objects, each having a unique revealable indicator on the surface of the glass. The revealable indicator is created by a shallow etching into the exterior surface of the tasting glass such that the indicator is substantially invisible to the human eye under normal conditions, but becomes visible when condensation forms on the outer surface of the glass.
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Courson Tania C
McDonnell Boehnen & Hulbert & Berghoff LLP
Smith R. A.
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