US PATENT SUBCLASS 430 / 72
.~.~.~.~ Substituted

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

31  DF  ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18}
56  DF  .~ Radiation-sensitive composition or product {10}
70  DF  .~.~ Radiation-conductive composition contains carbocyclic ring only {2}
71  DF  .~.~.~ Polycyclo ring system {1}
72.~.~.~.~ Substituted

DEFINITION

Classification: 430/72

Substituted:

(under subclass 71) Compositions wherein the polycyclic ring containing compound, polymer, resin, etc., is substituted,

i.e., has an atom replaced by another atom or radical, on the ring.