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:
Jan. 06, 1976
Filed:
Jun. 11, 1974
Applicant:
Inventors:
william C Cooke, Kingsport, TN (US);
Albert H Agett, Kingsport, TN (US);
Assignee:
ASG Industries Inc., Kingsport, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
65 3 / ; 427431 ;
Abstract
By the addition of a small quantity of potassium chloride or arsenous sulfide to commercial grades of molten potassium nitrate, the potassium nitrate may be activated or purified sufficiently to produce strengthened glass by ion exchange equal to glass strengthened by use of highly purified laboratory reagent grades of potassium nitrate.