US PATENT SUBCLASS 502 / 72
.~.~ Mixed clays
Current as of:
June, 1999
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502 /
HD
CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING
60
DF
ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS
{13}
63
DF
.~ And additional AL or Si containing component {2}
72
.~.~ Mixed clays
DEFINITION
Classification: 502/72
Mixed clays:
(under subclass 63) Composition containing different earthy
materials as encompassed by the glossary term "clay"
(1) Note. This subclass requires a deliberate admixture of clays and does not encompass a naturally occurring mixture of clays.