Granted Patent
Utility
US 5,593,929 · App. 07/976,059
Ultraviolet absorbing green tinted glass
Inventors:
John F. Krumwiede, Joseph A. Gulotta, Larry J. Shelestak
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Nov 13, 1992
Inventors
John F. Krumwiede
Joseph A. Gulotta
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.