US PATENT SUBCLASS 106 / 757
.~.~.~.~ Comminuting or grinding, other than nominal, of raw material or fuel (e.g., to desired size or relative sizes, etc.) or recited particle of specified size

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}
757.~.~.~.~ Comminuting or grinding, other than nominal, of raw material or fuel (e.g., to desired size or relative sizes, etc.) or recited particle of specified size

DEFINITION

Classification: 106/757

Comminuting or grinding, other than nominal, of raw material or fuel (e.g., to desired size or relative sizes, etc.) or recited particle of specified size:

(under subclass 739) Subject matter involving comminuting, or grinding, in a specified manner, of raw material or fuel, e.g., to desired size or relative sizes, etc. or recited particle of specified size is claimed.

(1) Note. Mere recitation of milling, grinding or comminuting is not sufficient to place a patent in this subclass, but specific parameters of operation must be recited.

(2) Note. Composition containing a grinding aid material is placed above in Portland cement compositions unless the additive material is clearly not present after the grinding.