US PATENT SUBCLASS 423 / 331
.~.~.~ Alkaline earth metal containing (Mg, Ca, Sr, or Ba)

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

Internet Version by PATENTEC © 1999      Terms of Use


423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

324  DF  SILICON OR COMPOUND THEREOF {4}
325  DF  .~ Oxygen containing {2}
326  DF  .~.~ Metal containing (i.e., silicate) {3}
331.~.~.~ Alkaline earth metal containing (Mg, Ca, Sr, or Ba)

DEFINITION

Classification: 423/331

(under subclass 326) Products or processes in which the

product contains magnesium, calcium, strontium or barium (i.e., the alkaline earth metals).