US PATENT SUBCLASS 106 / 765
.~.~.~.~ Calcium sulfate containing raw material

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}
765.~.~.~.~ Calcium sulfate containing raw material

DEFINITION

Classification: 106/765

Calcium sulfate containing raw material:

(under subclass 739) Subject matter wherein the raw material includes calcium sulfate, i.e., the calcium sulfate is present prior to sintering, not a subsequent additive.