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:
Nov. 22, 2011
Filed:
May. 28, 2010
Larry J. Shelestak, Bairdford, PA (US);
George B. Goodwin, Cranberry Township, PA (US);
Amarendra Mishra, Allison Park, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
Larry J. Shelestak, Bairdford, PA (US);
George B. Goodwin, Cranberry Township, PA (US);
Amarendra Mishra, Allison Park, PA (US);
James M. Baldauff, Pittsburgh, PA (US);
PPG Industries Ohio, Inc, Cleveland, OH (US);
Abstract
An aircraft transparency in a glass piece, wherein the glass piece includes a chemically tempered first major surface and a chemically tempered opposite second major surface, a first case depth begins at the first major surface, a second case depth begins at the second major surface, and a tensile stress zone is within the glass piece between the end points of the first and the second case depths. The glass between the end points of the first and second case depth has a glass composition including: the glass has at least one of the following properties (a) a log 10 viscosity temperature of at least 1413° F. and (b) a liquidus temperature of at least 2436° F.