(under subclass 14) Products and compositions which include asphalts, tars, pitches or resins derived from petroleum, coal tar, or petroleum tar sources, or from solid natural
sources such as asphaltic rocks or bituminous sands.
(1) Note. Asphalts, tars, pitches and resins are relatively high boiling, viscous or solid dark colored fractions or residues which may result from petroleum distillation or treatment or which may be natural occurring. Resins classified herein are those derived from mineral oils, such as asphalts by solvent extraction or which are residues of mineral oil treating processes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4+, for the production of asphalt, tar or pitch by oxidation of a mineral oil material.
8+, for processes of recovering or extracting asphalts from solid natural sources.
39+, for processes of preparing, recovering or treating asphalts, tars, pitches or resins. SEE OR SEARCH CLASS
260, Chemistry of Carbon Compounds,
2.01, and particularly Class 526 thereunder and, subclass 290 for synthetic resins formed from an unsaturated petroleum hydrocarbon fraction.
