US PATENT SUBCLASS 501 / 17
.~.~.~ Frit plus material other than glass (e.g., color, opacifier, mill additions, etc.)

Current as of: June, 1999
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501 /   HD   COMPOSITIONS: CERAMIC

1  DF  CERAMIC COMPOSITIONS {15}
11  DF  .~ Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions {11}
14  DF  .~.~ Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients) {4}
17.~.~.~ Frit plus material other than glass (e.g., color, opacifier, mill additions, etc.) {3}
18  DF  .~.~.~.~> Titanium or zirconium compound as other material
19  DF  .~.~.~.~> Free metal as other material
20  DF  .~.~.~.~> With vehicle or suspending agent (i.e., slip)

DEFINITION

Classification: 501/17

Frit plus material other than glass (e.g., color, opacifier, mill additions, etc.):

(under subclass 14) Compositions which comprise a frit pulse at least one other material which is not a glass.

(1) Note. The other material may be, e.g., an opacifying agent, a coloring agent, or any material added during the milling or other comminuting operation to enhance that process or to improve the properties of the product of that process.