US PATENT SUBCLASS 558 / 276
.~.~ Nitrogen or chalcogen attached indirectly to the -O-C(=O)O- group by acyclic 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}
260  DF  .~ Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {8}
276.~.~ Nitrogen or chalcogen attached indirectly to the -O-C(=O)O- group by acyclic nonionic bonding


DEFINITION

Classification: 558/276

(under subclass 260) Compounds wherein the -O-C(=O)O- group is attached indirectly to nitrogen or to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding.

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