US PATENT SUBCLASS 252 / 389.23
.~.~.~.~.~ Pentavalent P, except H(n+2)PnO(3n+1)

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}
389.23.~.~.~.~.~ Pentavalent P, except H(n+2)PnO(3n+1)

DEFINITION

Classification: 252/389.23

Pentavalent P, except H (n+2)P nO (3n+1):

(under subclass 389.2) Compositions in which the Phosphorus containing compound includes pentavalent Phosphorus, such as phospho and phosphono compounds, while excluding compounds of the formula H (n+2)P nO (3n+1) (i.e., the phosphoric and polyphosphoric acids).