US PATENT SUBCLASS 44 / 388
.~.~ 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)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.~.~ 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}
399  DF  .~.~.~> Nitrogen attached indirectly to the -C(=O)O- group by nonionic bonding
400  DF  .~.~.~> Chalcogen or halogen attached indirectly to the -C(=O)O- group by nonionic bonding
401  DF  .~.~.~> Alkyl ester of formic or alkanoic acids {1}

DEFINITION

Classification: 44/388

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):

(under subclass 385) Compositions wherein an additional carbon is bonded directly to the single bonded oxygen, which additional carbon may be single bonded to any element but may be multiple bonded only to carbon.

(1) Note. An example of an ingredient provided for herein is: [figure]