US PATENT SUBCLASS 552 / 105
.~.~ The acyclic carbon and an additional carbon are bonded directly to the same oxygen (ethers, esters, etc.)

Current as of: June, 1999
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552 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, subclass 1) {11}
101  DF  .~ Acyclic carbon bonded directly to three benzene rings or to two benzene rings and a cyclohexadienyl ring, which acyclic carbon may not be bonded to a fourth carbon (e.g., triphenylmethane dyestuffs, etc.) {12}
105.~.~ The acyclic carbon and an additional carbon are bonded directly to the same oxygen (ethers, esters, etc.)

DEFINITION

Classification: 552/105

(under subclass 101) Compounds wherein the same oxygen is bonded both to the acyclic carbon and to an additional carbon.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]