Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Reexamination Certificate
2005-04-19
2005-04-19
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
C209S583000, C209S900000, C209S003300
Reexamination Certificate
active
06881915
ABSTRACT:
A method and a system is disclosed for affixing invisible or unobtrusive markings to mail pieces (4), and subsequently collecting information from the mail pieces for sorting purposes. The system includes the affixation of an optically contrasting layer (1) to a mail piece, the layer changing optically upon the application of a stimulus to present a contrasting background for imaging encoded information (3) applied over the layer and related to the mail piece.
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Driscoll Timothy J.
Lawandy Nabil M.
Zepp Charles M.
Harrington & Smith ,LLP
Joerger Kaitlin
Spectra Systems Corporation
Walsh Donald P.
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