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:
Jun. 22, 1993
Filed:
Mar. 03, 1992
Applicant:
Inventors:
Tyngbin Onlin, Hsinchu, TW;
Bih-Shyang Huang, Hsinchu, TW;
Pak-Hing Lee, Hsinchu, TW;
Tei-Chih Cheau, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Taiwan, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75419 ; 75422 ; 75425 ; 75634 ;
Abstract
A process for recovering silver oxide and metals from a spent silver oxide button cell. The process relates to a physical process which consists of a heating and a cooling process to separate the shell and the content (silver, silver oxide) of the spent silver oxide cell, so that silver oxide, silver and other metals such as zinc, iron and nickel can be recovered and reused.