US PATENT SUBCLASS 252 / 389.22
.~.~.~.~.~.~ Pentavalent P, except H(n+2)PnO(3n+1)

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

Internet Version by PATENTEC © 1999      Terms of Use


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  DF  .~.~.~.~.~ Nitrogen and/or sulfur in phosphorus compound {1}
389.22.~.~.~.~.~.~ Pentavalent P, except H(n+2)PnO(3n+1)

DEFINITION

Classification: 252/389.22

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

(under subclass 389.21) 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).