US PATENT SUBCLASS 5 / 707
.~.~ Fixed amount of gas (i.e., permanently sealed container)

Current as of: June, 1999
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5 /   HD   BEDS

690  DF  MATTRESS (FOR WHOLE BODY) {23}
706  DF  .~ Having confined gas (e.g., air mattress) {9}
707.~.~ Fixed amount of gas (i.e., permanently sealed container)

DEFINITION

Classification: 5/707

Fixed amount of gas (e.g., permanently sealed container):

(under subclass 706) Mattress having confined gas in which a fixed amount of gas is permanently sealed in an impervious container that lacks a valve or other means to add or release gas.