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:
Mar. 17, 2015
Filed:
May. 24, 2013
Applicant:
Retriev Technologies Incorporated, Anaheim, CA (US);
Inventors:
W. Novis Smith, Philadelphia, PA (US);
Steven Kinsbursky, Long Beach, CA (US);
Assignee:
Retriev Technologies Incorporated, Anaheim, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 13/00 (2006.01); C22B 3/00 (2006.01);
U.S. Cl.
CPC ...
C22B 13/045 (2013.01);
Abstract
The present invention relates to the recovery of high purity litharge from spent lead acid battery paste at a low temperature which does not produce sulfur dioxide. In the process lead acetate or other lead salt is produced which is converted to high purity litharge by precipitation with a base.