US PATENT SUBCLASS 428 / 630
.~.~.~ Noncrystalline silica or noncrystalline plural-oxide component (e.g., glass, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

544  DF  ALL METAL OR WITH ADJACENT METALS {31}
615  DF  .~ Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, joint, etc.) {15}
621  DF  .~.~ With additional, spatially distinct nonmetal component {7}
630.~.~.~ Noncrystalline silica or noncrystalline plural-oxide component (e.g., glass, etc.) {1}
631  DF  .~.~.~.~> Film (e.g., glaze, etc.)

DEFINITION

Classification: 428/630

(under subclass 621) Subject matter in which the nonmetal component is an amorphous material consisting of silica or a mixture of oxide or a mixed-metal oxide, e.g., sodium silicate.

(1) Note. The mere designation of a component as "glass" is sufficient for classification herein.

(2) Note. See the main class definition of this class (428), section VI, C, 6, for loci of other coating and coated products.

SEE OR SEARCH THIS CLASS, SUBCLASS:

432, for a nonmetallic* composite* in which one component* is glass or quartz and another component may be a metal.

632, for a metallic* composite* having a crystalline (ceramic) component. SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

759, for other metal-to-glass joints.

174, Electricity: Conductors and Insulators,

50.61, for boxes and housings with a bonded seal for a conductive member, e.g., glass-to-metal.

403, Joints and Connections,

30, for joint structure wherein two members have different coefficients of expansion.