US PATENT SUBCLASS 427 / 255.22
.~.~.~ Iron compound containing base (e.g., ferric oxide, etc.)

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

248.1  DF  COATING BY VAPOR, GAS, OR SMOKE {9}
255.11  DF  .~ Base includes an inorganic compound containing silicon or metal (e.g., glass, ceramic, brick, etc.) {7}
255.21  DF  .~.~ Base includes inorganic metal containing compound {1}
255.22.~.~.~ Iron compound containing base (e.g., ferric oxide, etc.)

DEFINITION

Classification: 427/255.22

Iron compound containing base (e.g. ferric oxide, etc.):

(under subclass 255.21) Process wherein the metal is iron.