US PATENT SUBCLASS 558 / 24
.~.~ Plural sulfate groups attached indirectly to each other by nonionic bonding

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


558 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
20  DF  .~ Sulfate esters ( i.e., compounds having the sulfate group, -O-S(=O)(=O)O-, bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {11}
24.~.~ Plural sulfate groups attached indirectly to each other by nonionic bonding {2}
25  DF  .~.~.~> Nitrogen attached indirectly to a sulfate group by acyclic nonionic bonding
26  DF  .~.~.~> Additional chalcogen attached indirectly to a sulfate group by acyclic nonionic bonding

DEFINITION

Classification: 558/24

(under subclass 20) Compounds in which plural sulfate groups are indirectly attached to each other by nonionic bonding.

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