US PATENT SUBCLASS 44 / 448
.~.~.~ Dialkyl ether

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

DEFINITION

Classification: 44/448

Dialkyl ether:

(under subclass 447) Compositions wherein oxygen is bonded directly to two identical or different alkyl groups.