US PATENT SUBCLASS 521 / 83
.~.~.~ Ingredient is asphaltic, bituminous, or water settable inorganic material, e.g., cement, plaster of Paris, etc.

Current as of: June, 1999
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521 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
82  DF  .~.~ Process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same {14}
83.~.~.~ Ingredient is asphaltic, bituminous, or water settable inorganic material, e.g., cement, plaster of Paris, etc.

DEFINITION

Classification: 521/83

Ingredient is asphaltic, bituminous, or water settable inorganic material, e.g., cement, plaster of paris, etc.:

(under subclass 82) Subject matter wherein the stated ingredient contains an asphaltic, bituminous, or water settable inorganic material.

(1) Note. Asphaltic or bituminous refers to solid or semi-solid materials which are often black or dark brown and which occur naturally, or are obtained by refining petroleum,

or are the components of coal which are soluble in organic solvents.

(2) Note. As used herein the terms asphaltic or bituminous include asphaltides, asphalt, asphaltic pyrobitumens, ozokerite, earth pitch, mineral pitch, petroleum asphalt, gilsonite, etc.

(3) Note. Water settable inorganic material denotes a material hardenable by hydration so as to produce a solid mass, e.g., cement, concrete, plaster of Paris, etc. It furthermore includes systems in any state of cure and which are present for any purpose. If any doubt exists in a claim as to whether an inorganic ingredient is water settable, such doubt should be resolved by classifying the claim into the appropriate subclass below.