US PATENT SUBCLASS 501 / 10
.~.~ Nonsilica and nonsilicate crystalline phase (e.g., spinel, barium titanate, etc.)
Current as of:
June, 1999
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501 /
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COMPOSITIONS: CERAMIC
1
DF
CERAMIC COMPOSITIONS
{15}
2
DF
.~ Devitrified glass-ceramics {4}
10
.~.~ Nonsilica and nonsilicate crystalline phase (e.g., spinel, barium titanate, etc.)
DEFINITION
Classification: 501/10
Nonsilica and nonsilicate crystalline phase (e.g., spinel, barium titanate, etc.):
(under subclass 2) Compositions in which the crystalline phase does not include silica or a silicate.
(1) Note. The crystalline phase may comprise, e.g., spinel (MgAl
2
O
4
), gaehnite (ZnAl
2
O
4[end subscrpt]), franklinite (Fe, Zn, Mn) Fe
2[end subscrpt]O
4
) chromite (FeCr
2
O
4
), barium titanate (BaTiO
3
), etc.
