US PATENT SUBCLASS 65 / 33.3
.~.~ Halogen containing phase (e.g., crystalline or noncrystalline, etc.)

Current as of: June, 1999
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65 /   HD   GLASS MANUFACTURING

17.1  DF  PROCESSES {32}
33.1  DF  .~ Devitrifying glass or vitrifying crystalline glass (e.g., starting with or forming crystalline glass, etc.) {6}
33.3.~.~ Halogen containing phase (e.g., crystalline or noncrystalline, etc.)

DEFINITION

Classification: 65/33.3

Halogen containing phase (e.g., crystalline or noncrystalline, etc.):

(under subclass 33.1) Processes wherein the composition of the glass includes halogen material during some phase of the vitrifying or devitrifying operation.

(1) Note. The halogens are: Fluorine (F); Chlorine (Cl); Bromine (Br); Iodine (I); Astatine (At)