US PATENT SUBCLASS 429 / 329
.~.~.~.~.~ Oxygen is ring member of the hetero ring

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

122  DF  CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS {16}
188  DF  .~ Include electrolyte chemically specified and method {11}
324  DF  .~.~ Chemically specified organic solvent containing {6}
326  DF  .~.~.~ Plural organic solvents (i.e., solvent mixture) {1}
327  DF  .~.~.~.~ One of the organic solvents contains a hetero ring {2}
329.~.~.~.~.~ Oxygen is ring member of the hetero ring {2}
330  DF  .~.~.~.~.~.~> The hetero ring is a cyclic carbonate {3}
334  DF  .~.~.~.~.~.~> And acyclic oxygen or nitrogen containing solvent compound {1}

DEFINITION

Classification: 429/329

Oxygen is ring member of the hetero ring:

(under subclass 327) Subject matter wherein one of the organic solvents contains oxygen as ring member of the hetero ring (e.g., gamma butyrolactone, etc.).