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:
Sep. 06, 1977
Filed:
Feb. 18, 1975
Applicant:
Inventors:
Reiichi Itai, Maebashi, JA;
Katsuyuki Murakami, Maebashi, JA;
Assignee:
The Japan Carlit Company, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02C / ; C02C / ;
U.S. Cl.
CPC ...
204149 ; 204130 ;
Abstract
A photographic developer waste solution is electrolytically purified by adding to said waste solution chloride ion and bromide ion; or chloride ion, bromide ion and iodide or iodate ion under limited pH, temperature, anode current density and current concentration conditions.