US PATENT SUBCLASS 507 / 134
.~.~ Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding

Current as of: June, 1999
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507 /   HD   EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

100  DF  EARTH BORING {4}
103  DF  .~ Contains organic component {14}
134.~.~ Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding {1}
135  DF  .~.~.~> Organic component contains a sulfur attached directly to carbon by nonionic bonding (e.g., sulfonate, etc.)

DEFINITION

Classification: 507/134

Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding:

(under subclass 103) Composition wherein the organic component contains sulfur directly or indirectly attached to carbon by nonionic bonding (e.g., sulfates, etc.).

(1) Note. Sulfur as part of a counterion to an ionic compound is not a basis for including a composition in this subclass (for example, a quaternary alkylarsonium sulfate is classifiable in subclass 103).

(2) Note. An organic material which has been sulfurized without identification of a direct carbon-sulfur bond is classifiable herein, whereas an organic material which has been sulfonated is sufficient identification of a carbon-sulfur bond to allow placement of such a component in subclass 135.