US PATENT SUBCLASS 428 / 143
.~.~ Particulate matter

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

98  DF  STRUCTURALLY DEFINED WEB OR SHEET (E.G., OVERALL DIMENSION, ETC.) {20}
141  DF  .~ Continuous and nonuniform or irregular surface on layer or component (e.g., roofing, etc.) {5}
143.~.~ Particulate matter {5}
144  DF  .~.~.~> Coated {1}
146  DF  .~.~.~> Carbohydrate
147  DF  .~.~.~> Polymer or resin (e.g., natural or synthetic rubber, etc.)
148  DF  .~.~.~> Metal or metal compound
149  DF  .~.~.~> Silicon containing {1}

DEFINITION

Classification: 428/143

(under subclass 141) Product in which the irregularities comprise small pieces or granules of matter.

(1) Note. Included in this subclass are products which are used as roofing or siding on homes. To complete the search for such products the appropriate subclasses in Class 52, Static Structures (e.g., Buildings), should be considered.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings), appropriate subclasses especially

518+, for shingles particularly provided for therein.