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. 16, 1982
Filed:
Dec. 05, 1980
Applicant:
Inventor:
Preston S White, Corpus Christi, TX (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 75 ; 252180 ;
Abstract
Precipitation of aluminum corrosion products from phosphate-borate ethylene glycol based antifreeze formulations is retarded by incorporating in the antifreeze a precipitation retarding amount of alkylene diphosphonic acid, e.g., 1-hydroxyethylidene-1,1-diphosphonic acid.