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. 01, 1998
Filed:
May. 08, 1995
Applicant:
Inventors:
Percy A Jaquess, Tigrett, TN (US);
Luis Fernando Del Corral, Memphis, TN (US);
Assignee:
Buckman Laboratories International Inc., Memphis, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
510109 ; 510101 ; 510162 ; 510421 ; 510434 ; 510436 ; 510477 ; 510488 ;
Abstract
An aqueous, biodegradable acid-based cleaner employing a dicarboxylic acid selected from oxalic acid, malonic acid, and tartaric acid and a tricarboxylic acid selected from citric acid and ascorbic acid is disclosed. A method for cleaning a filter used to filter biguanide-treated recreational water is also disclosed.