US PATENT SUBCLASS 44 / 449
.~.~.~.~ Tertiary carbon bonded directly to the ether oxygen

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}
436  DF  .~ Organic oxygen compound containing (e.g., alicyclic alcohols, hypochlorites, etc.) {9}
447  DF  .~.~ Ether {1}
448  DF  .~.~.~ Dialkyl ether {1}
449.~.~.~.~ Tertiary carbon bonded directly to the ether oxygen

DEFINITION

Classification: 44/449

Tertiary carbon bonded directly to the ether oxygen:

(under subclass 448) Compositions wherein the oxygen is bonded directly to a tertiary carbon atom.

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