US PATENT SUBCLASS 106 / 741
.~.~.~.~ Color control or modification (e.g., steps to produce white cement, etc.)

Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
638  DF  .~ Inorganic settable ingredient containing {30}
713  DF  .~.~ Portland type cement {13}
739  DF  .~.~.~ Portland type cement per se (e.g., clinker preparation, etc.) {26}
741.~.~.~.~ Color control or modification (e.g., steps to produce white cement, etc.) {1}
742  DF  .~.~.~.~.~> Cooling in reducing atmosphere

DEFINITION

Classification: 106/741

Color control or modification (e.g., steps to produce white cement, etc.):

(under subclass 739) Subject matter involving color control or modification of color of the cement, e.g., steps or additives to produce white cement, etc.