Optics: measuring and testing – By shade or color – With sequential comparison of sample and standard
Reexamination Certificate
2007-01-23
2007-01-23
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
By shade or color
With sequential comparison of sample and standard
C356S402000, C356S425000, C356S319000, C427S008000, C427S010000, C427S258000
Reexamination Certificate
active
10619370
ABSTRACT:
A process for color matching a metallic paint by taking a color measurement reading at a single angle using a regular spectrophotometer or colorimeter is provided. The preferred type of metallic pigment to be utilized in preparing the matching color can be selected by microscopic evaluation of the metallic pigment in the target metallic paint to identify its size, shape and probable composition.
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Katterle Paul R.
Lauchman Layla G.
McDonald Robert E.
The Sherwin-Williams Company
Tsang Vivien Y.
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