US PATENT SUBCLASS 564 / 454
.~.~.~ The chain consists of two or more carbons which are unsubstituted or have acyclic hydrocarbyl substituents only

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
453  DF  .~.~ Alicyclic ring or ring system and amino nitrogen are attached indirectly by an acyclic carbon or chain {2}
454.~.~.~ The chain consists of two or more carbons which are unsubstituted or have acyclic hydrocarbyl substituents only

DEFINITION

Classification: 564/454

(under subclass 453) Compounds wherein the chain contains at least two carbons and is either unsubstituted or substituted only by acyclic hydrocarbon groups.

(1) Note. This subclass contains, for example: [figure] [figure]