US PATENT SUBCLASS 428 / 323
.~ Including a second component containing structurally defined particles

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

221  DF  WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT {9}
323.~ Including a second component containing structurally defined particles {7}
324  DF  .~.~> Mica
325  DF  .~.~> Glass or ceramic (i.e., fired or glazed clay, cement, etc.) (porcelain, quartz, etc.)
326  DF  .~.~> Cellulosic (e.g., wood, paper, cork, rayon, etc.)
327  DF  .~.~> Polymeric or resinous material
328  DF  .~.~> Heavy metal or aluminum or compound thereof {1}
330  DF  .~.~> Alkali metal or alkaline earth metal or compound thereof
331  DF  .~.~> Silicic material

DEFINITION

Classification: 428/323

(under subclass 221) Product which comprises at least two components, one of which consists of or includes grains or

extremely small pieces or fragments of material claimed in terms of (1) their particular size or shape (natural or fabricated) or (2) an orderly arrangement relative to one another or (3) their particular interengagement within the component, or (4) their engagement with the material of an adjacent component.

(1) Note. A web, sheet or layer claimed as having a haphazard arrangement of its particulate constituents is not considered as possessing an orderly arrangement of its particulate constituent within the definition of this subclass.

(2) Note. A composite web or sheet in which its particulate constituents are claimed as being in an orderly arrangement relative to a surface of the web or sheet is considered to be a structurally defined web or sheet and will be found in subclasses 98+.

(3) Note. Coated particles* are considered to be structurally defined and therefore, a composite web in which one layer or component contains coated particles will be placed in this or an indented subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

304+, for a web or sheet comprising a component embodying porous or cellular particles so claimed. 357+, for a mass of or containing oriented or structurally defined particles.

411+, for a nonstructural laminate incorporating particulate material neither oriented nor structurally defined.

SEE OR SEARCH CLASS

149, Explosive and Thermic Compositions or Charges,

110+, for a product of that class (149) embodying particulate material of a certain size(s).