US PATENT SUBCLASS 585 / 13
.~.~ Mineral oil (petroleum) fraction

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

1  DF  PRODUCT BLEND, E.G., COMPOSITION, ETC., OR BLENDING PROCESS PER SE {5}
7  DF  .~ Component of indefinite molecular weight greater than 150 {4}
13.~.~ Mineral oil (petroleum) fraction

DEFINITION

Classification: 585/13

Mineral oil (petroleum) fraction:

(under subclass 7) Subject matter wherein the component is a mineral oil fraction.