US PATENT SUBCLASS 106 / 157.51
.~.~.~.~ Aluminum sulfate (e.g., alum, pearl alum, cake alum, etc.)

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

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
124.1  DF  .~ Proteinaceous material containing {21}
157.2  DF  .~.~ With element or inorganic compound except water {7}
157.5  DF  .~.~.~ Elemental sulfur or inorganic sulfur compound {1}
157.51.~.~.~.~ Aluminum sulfate (e.g., alum, pearl alum, cake alum, etc.)

DEFINITION

Classification: 106/157.51

Aluminum sulfate (e.g., alum, pearl alum, cake alum, etc.):

(under subclass 157.5) Compositions wherein the inorganic compound containing sulfur is Al2[end subscrpt](SO4)3[end subscrpt].