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. 20, 1983
Filed:
Mar. 15, 1982
Applicant:
Inventors:
Roger J Araujo, Horseheads, NY (US);
Nicholas F Borrelli, Elmira, NY (US);
Paul A Tick, Corning, NY (US);
Donald M Trotter, Corning, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 68 ; 65 3011 ; 65 3013 ; 428210 ; 428410 ; 428426 ; 428428 ; 428427 ; 428913 ; 428332 ; 501 13 ;
Abstract
There is disclosed a composite photochromic glass article composed of a glass core and a thin surface layer substantially encasing that core, the core preferably containing a copper-cadmium halide photochromic crystal system and the substantially encasing glass layer preferably containing a copper-cadmium-silver halide photochromic crystal system. The article may be made by fusion laminating two separately formed glasses, or by introducing silver into a surface layer on a glass article by ion exchange.