Granted Patent
Utility
US 4,792,536 · App. 07/067,504
Transparent infrared absorbing glass and method of making
Inventors:
George A. Pecoraro, Larry J. Shelestak
Patented Case
View Patent ↗
Granted: Dec 20, 1988
Filed: Jun 29, 1987
Inventors
George A. Pecoraro
Larry J. Shelestak
Assignee (at issue)
PPG Industries, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.