Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2007-06-12
2007-06-12
Lorengo, J. A. (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C106S031430, C106S031580
Reexamination Certificate
active
10756905
ABSTRACT:
Improved eradicating fluids and eradicable inks are disclosed. A color changing eradicating fluid is disclosed which includes a volatile base, a pH sensitive dye and an eradicating agent whereby the dye changes color as the volatile base evaporates thereby provided a visual indication to the user when the eradicating fluid is sufficiently dry and ready to receive a corrected marking. A non-color changing eradicating fluid having a more moderate pH is also disclosed. The combination eradicable and re-write ink is disclosed which features phosphoric acid (or phosphorus pentoxide in solution) along with an eradicable dye. A combination writing and correction instrument that combines a disclosed eradicating fluid and a combination eradicable and re-write ink is also disclosed.
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Faison-Gee Veronica
Lorengo J. A.
Marshall & Gerstein & Borun LLP
Sanford L.P.
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