The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 1999
Filed:
Oct. 14, 1998
Applicant:
Inventors:
Nadine Yenni, Sonoma, CA (US);
Chan Vu, Rodeo, CA (US);
Assignee:
Chevron U.S.A. Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208307 ; 208299 ; 208301 ; 208303 ; 208306 ; 208 99 ;
Abstract
Severely contaminated white mineral oils which fail the RCS specification are treated using an acid-treated bentonite clay, such as TONSIL CO 630G. The white oil products produced in the treatment may be a USP grade white oil.