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. 19, 1992
Filed:
Feb. 08, 1990
Applicant:
Inventors:
Stephen W Smoot, Wilkes-Barre, PA (US);
Joseph S Hayden, Clarks Summit, PA (US);
Marc Clement, Mainz, DE;
Danuta Grabowski, Taunusstein, DE;
Eva Holzel, Ober-Olm, DE;
Peter Nass, Mainz, DE;
Martin Heming, Saulheim, DE;
Assignee:
Schott Glass Technologies, Inc., Duryea, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G11B / ;
U.S. Cl.
CPC ...
430-5 ; 430 13 ; 430 14 ; 430 19 ; 430270 ; 430296 ; 430321 ; 428410 ; 428426 ; 65 3011 ;
Abstract
Silicate glasses are provided which when exposed to a silver ion exchange surface treatment are writable with electron beams. These glasses contain OD agents and do not require elements having 1-4 d-electrons in the atomic state.