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:
Aug. 03, 1976
Filed:
Sep. 26, 1975
Applicant:
Inventor:
John C Stauter, Itasca, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204117 ;
Abstract
Metallic lead may be obtained from lead sulfide feed stocks or concentrates by fluorinating the lead sulfide, dissolving the resultant lead fluoride in hydrofluosilicic acid, separating the solid residue from the liquid and subjecting the liquid to electrolysis.