Special receptacle or package – Including ancillary article contacting medium – Gas medium
Reexamination Certificate
2005-09-20
2005-09-20
Fidei, David T. (Department: 3728)
Special receptacle or package
Including ancillary article contacting medium
Gas medium
C383S102000, C383S100000
Reexamination Certificate
active
06945392
ABSTRACT:
A container includes a housing for containing an O2-generating composition. The housing includes a venting layer and a structural layer associated with the venting layer. The venting layer has a venting layer O2passage rate and a venting layer surface area, while the structural layer has a structural layer O2passage rate and a structural layer surface area. The venting layer O2passage rate is greater than the structural layer O2passage rate, and the structural layer surface area is less than the venting layer surface area. Alternatively, the structural layer may include a plurality of apertures and a patch associated with each aperture, instead of a venting layer. Each patch has a patch O2passage rate and the total O2passage rate of the container includes the sum of each patch O2passage rate. The total O2passage rate is at least about 0.2 L/(m2*24 hours).
REFERENCES:
patent: 3503497 (1970-03-01), Riely et al.
patent: 4404241 (1983-09-01), Mueller et al.
patent: 4579223 (1986-04-01), Otsuka et al.
patent: 4856650 (1989-08-01), Inoue
patent: 4884694 (1989-12-01), Sengewald
patent: 2001/0049001 (2001-12-01), Mueller
Furukawa Shizuka
Nanno Yukio
Bamber Jeffrey V.
Fidei David T.
Peebles Brent M.
The Procter & Gamble & Company
William Zerby Kim
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