US PATENT SUBCLASS 208 / 302
.~.~ With subsequent treatment of the oil

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

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
299  DF  .~ With solid catalyst or absorbent {8}
302.~.~ With subsequent treatment of the oil

DEFINITION

Classification: 208/302

(under subclass 299) Processes combined with a nonconversion treatment of the mineral oil subsequent to the contacting of the oil with the solid catalyst or adsorbent.