Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Reexamination Certificate
2005-04-27
2009-06-09
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Elastic, resilient or spring biasing valve means
C429S055000, C429S096000, C277S552000, C277S928000
Reexamination Certificate
active
07544439
ABSTRACT:
Water-tight battery powered appliances, for example personal care appliances such as razors and toothbrushes, are provided. The appliances include a housing having a seal that allows gases, e.g., hydrogen, to vent from the appliance without allowing water to enter.
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Diehl Martin
Fandrey Ulrich
Schaaf Uwe
Winter Florina
Johnson Kevin C.
Kalafut Stephen J.
Lipchitz John M.
Miller Steven C.
The Gillette Company
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