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. 19, 2000
Filed:
Aug. 31, 1998
Applicant:
Inventors:
Victor D Papanu, Doylestown, PA (US);
Stephen W Carson, Downingtown, PA (US);
Scott J Schwartz, East Brunswick, NJ (US);
Assignee:
Elf Atochem North America, Inc., Philadelphia, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
428429 ; 428 81 ; 428428 ; 428 667 ; 428 347 ; 428 346 ; 428410 ; 428210 ; 428447 ; 427164 ; 427165 ; 427167 ;
Abstract
A method is described for strengthening or restoring strength to a flat brittle oxide substrate which includes the steps of coating the edges of the brittle oxide substrate with a strengthening composition without coating a significate portion of the flat surfaces. The strengthen brittle oxide substrate such as glass and a window containing as the window pane the edge strengthen glass are also provided.