Fluid sprinkling – spraying – and diffusing – Slow diffusers
Reexamination Certificate
2005-01-04
2005-01-04
Nguyen, Dinh Q. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Slow diffusers
C239S055000, C239S056000
Reexamination Certificate
active
06837444
ABSTRACT:
A fluid filtration device utilizing envelope constructed of a frangible material and forming a closed interior chamber for holding a charge of volatile scented material. A flexible shield encloses the envelope and is permeable in a controlled manner to the volatile scented material once the envelope has been shattered.
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patent: 4345716 (1982-08-01), Armstrong et al.
patent: 5133458 (1992-07-01), Miller
patent: 6039488 (2000-03-01), Krawczyk et al.
Bielen, Jr. Theodore J.
Nguyen Dinh Q.
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