US PATENT SUBCLASS 106 / 775
.~.~.~ Anhydrous calcium sulfate (e.g., anhydrite, 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}
772  DF  .~.~ Calcium sulfate (e.g., gypsum, anhydrite, plaster of Paris, etc.) {10}
775.~.~.~ Anhydrous calcium sulfate (e.g., anhydrite, etc.) {2}
776  DF  .~.~.~.~> Organic material or slag containing
777  DF  .~.~.~.~> Keene's cement

DEFINITION

Classification: 106/775

Anhydrous calcium sulfate (e.g., anhydrite, etc.):

(under subclass 772) Subject matter employing anhydrous calcium sulfate, e.g., anhydrite, etc.