US PATENT SUBCLASS 148 / 258
.~.~.~.~ Contains an atom of chromium


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

Internet Version by PATENTEC © 1999      Terms of Use



148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
240  DF  .~ Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore {12}
243  DF  .~.~ Liquid reactive coating composition utilized {16}
253  DF  .~.~.~ Contains phosphorus {6}
258.~.~.~.~ Contains an atom of chromium


DEFINITION

Classification: 148/258

Contains an atom of chromium:

(under subclass 253) Subject matter wherein the liquid reactive coating composition contains at least one atom of phosphorus and at least one atom of chromium.