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:
Apr. 12, 2005
Filed:
Feb. 09, 2001
Applicants:
George A. Pecoraro, Lower Burrell, PA (US);
Larry J. Shelestak, Bairdford, PA (US);
Richard Markovic, Lower Burrell, PA (US);
Inventors:
George A. Pecoraro, Lower Burrell, PA (US);
Larry J. Shelestak, Bairdford, PA (US);
Richard Markovic, Lower Burrell, PA (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C003/087 ; C03C003/078 ;
U.S. Cl.
CPC ...
Abstract
A method is provided for adjusting, e.g., lowering, the melting and/or forming temperatures of a glass composition without substantially changing the bending and annealing temperatures of the glass composition. The method includes increasing the amount of CaO and decreasing the amount of MgO in the glass composition by the same or about the same amount.