US PATENT SUBCLASS 44 / 394
.~.~.~.~.~ With organic nitrogen compound

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

300  DF  LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS) {31}
385  DF  .~ Containing organic -C(=O)O- compound (e.g., fatty acids, etc.) {8}
388  DF  .~.~ The single bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any element but may be multiple bonded only to carbon (i.e., carboxylic acid esters) {4}
389  DF  .~.~.~ Plural -C(=O)O- groups attached to each other directly or indirectly by nonionic bonding (e.g., polyesters, half ester-half acid compounds, etc.) {5}
393  DF  .~.~.~.~ Copolymer of olefinically unsaturated hydrocarbon monomer and additional monomer (e.g., ethylene-vinyl acetate copolymers, etc.) {3}
394.~.~.~.~.~ With organic nitrogen compound

DEFINITION

Classification: 44/394

With organic nitrogen compound:

(under subclass 393) Compositions which contain, in addition to the compound having plural -C(=O)O- groups, an additional compound which is an organic nitrogen compound.

(1) Note. An organic nitrogen compound is one which has nitrogen attached directly or indirectly, by nonionic bonding, to carbon of an organic compound. See Glossary in the class definition for the definition of "organic compound".