US PATENT SUBCLASS 427 / 577
.~.~ Inorganic carbon containing coating material, not as steel (e.g., carbide, etc.)

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

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
569  DF  .~ Plasma (e.g., corona, glow discharge, cold plasma, etc.) {5}
577.~.~ Inorganic carbon containing coating material, not as steel (e.g., carbide, etc.)

DEFINITION

Classification: 427/577

Inorganic carbon containing coating material, not as steel (e.g., carbide, etc.):

(under subclass 569) Processes wherein the coating material, excluding steel, contains inorganic carbon.

(1) Note. Attention is directed to the definition of Class 260, Chemistry of Carbon Compounds, for the distinction between the terms "organic" and "inorganic."

(2) Note. Metal compounds, excluding steel, containing more than 1.7 percent of inorganic carbon are properly classified in this subclass.