Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Solid – shaped macroscopic article or structure
Reexamination Certificate
2011-06-21
2011-06-21
Douyon, Lorna M (Department: 1761)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Solid, shaped macroscopic article or structure
C510S224000, C510S298000, C510S475000, C510S478000, C510S509000
Reexamination Certificate
active
07964551
ABSTRACT:
A cleaning tablet comprising a hydrogen-bonded complex of poly(N-vinyl pyrrolidone) containing, by weight, about 15-20 wt. % H2O2, and ingredients capable of producing an effervescent effect in aqueous solution by release of carbon dioxide therefrom which comprises an alkali carbonate and/or bicarbonate base and an organic acid.
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patent: 5645848 (1997-07-01), De et al.
patent: 6723135 (2004-04-01), Eskuchen et al.
patent: 2004/0052826 (2004-03-01), Fernandez-Kleinlein et al.
Hood David K.
Jurek Michael J.
Shah Purvita
Davis William J.
Douyon Lorna M
ISP Investments Inc.
Thompson Hine LLP
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