Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Reexamination Certificate
2005-03-16
2009-06-30
Bernatz, Kevin M. (Department: 1794)
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
C178S018090, C345S166000
Reexamination Certificate
active
07553537
ABSTRACT:
A product10has a position identifying pattern16on it, the pattern comprising first and second positional components24, 26arranged to identify first and second positional coordinates x, y by means of their reflectivity at different respective wavelengths. Each component24, 26has a reflectivity at its respective wavelength that varies with position on the product10so that its reflectivity at a point is indicative of the position of that point, the pattern further comprising reference markings34, 36arranged to identify a fixed point in the scale of reflectivity of at least one of the positional components.
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Bernatz Kevin M.
Hewlett--Packard Development Company, L.P.
Higgins Gerard T
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