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:
May. 06, 1986
Filed:
Feb. 15, 1985
Applicant:
Inventors:
Gary W Bradley, Duncan, OK (US);
Stephen T Arrington, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23G / ;
U.S. Cl.
CPC ...
134-2 ; 134 29 ; 252 80 ; 252102 ; 252156 ;
Abstract
Methods and compositions for removing copper and copper oxide deposits from metal surfaces including surfaces formed of austenitic, nickel-chromium and other similar alloys without adversely affecting such surfaces are provided. The copper and copper oxide deposits are dissolved in an aqueous ammoniacal cleaning solution which includes one or more alkali metal or ammonium perborate oxidizing agents.