Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 9, 2009
Patent Application Number
11031818
Date Filed
January 6, 2005
Patent Primary Examiner
Patent abstract
A surface is masked or stenciled off in a specific pattern or design and treated with a liquid or vapor chemical composition. The resulting pattern or design on the surface is substantially invisible in the absence of condensation. As the surface is subject to a temperature change, for example, moved from a cooler ambient to a warmer ambient, the specific pattern or design becomes visible as a result of selective condensation.
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