US PATENT SUBCLASS 558 / 180
.~.~.~.~.~ Plural -C(=X)X- groups attached indirectly to the phosphorus 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}
70  DF  .~ Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon) {18}
177  DF  .~.~ Chalcogen attached indirectly to the phosphorus by acyclic nonionic bonding {2}
178  DF  .~.~.~ The chalcogen, X, is in a -C(=X)- group {1}
179  DF  .~.~.~.~ The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens {3}
180.~.~.~.~.~ Plural -C(=X)X- groups attached indirectly to the phosphorus by acyclic nonionic bonding

DEFINITION

Classification: 558/180

(under subclass 179) Compounds in which the phosphorus is attached indirectly to two or more -C(=X)X- groups by acyclic nonionic bonding, wherein the X's are the same or diverse chalcogens.

(1) Note. An example of a compound provided for herein is malathion, i.e., [figure]