US PATENT SUBCLASS 44 / 328
.~.~ Azo compound (i.e., each of the nitrogens is single bonded to carbon)

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}
327  DF  .~ Organic azide compound, or organic compound having acyclic nitrogen double bonded to acyclic nitrogen (e.g., diazo compounds, etc.) {1}
328.~.~ Azo compound (i.e., each of the nitrogens is single bonded to carbon)

DEFINITION

Classification: 44/328

Azo compound (i.e., each of the nitrogens is single bonded to carbon):

(under subclass 327) Compositions which contain an azo compound, i.e., a compound wherein carbon is bonded directly

to each of two acyclic nitrogens that are double bonded directly to each other.

(1) Note. Azo compounds are often used to give a distinctive coloration to fuels.

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