US PATENT SUBCLASS 562 / 34
.~.~.~ Addition salts having organic nitrogen containing cation

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
30  DF  .~ Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium) {15}
33  DF  .~.~ Petroleum sulfonic acids {1}
34.~.~.~ Addition salts having organic nitrogen containing cation

DEFINITION

Classification: 562/34

(under subclass 33) Products wherein the single bonded oxygen of a petroleum sulfonate group is bonded directly to organic nitrogen by ionic bonding.