US PATENT SUBCLASS 252 / 389.21
.~.~.~.~.~ Nitrogen and/or sulfur in phosphorus compound

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

380  DF  PRESERVATIVE AGENTS {3}
387  DF  .~ Anti-corrosion {1}
388  DF  .~.~ Organic compound containing {6}
389.1  DF  .~.~.~ Component inorganic or organic comprising element other than C,H,O,N,S, and halogen {10}
389.2  DF  .~.~.~.~ Phosphorus containing {3}
389.21.~.~.~.~.~ Nitrogen and/or sulfur in phosphorus compound {1}
389.22  DF  .~.~.~.~.~.~> Pentavalent P, except H(n+2)PnO(3n+1)

DEFINITION

Classification: 252/389.21

Nitrogen and/or sulfur in phosphorus compound:

(under subclass 389.2) Compositions in which the compound which includes an atom of phosphorus also includes an atom of the element nitrogen, or the element sulfur, or both nitrogen and sulfur.