Granted Patent
Utility
US 4,971,843 · App. 06/768,922
Non-iridescent infrared-reflecting coated glass
Inventors:
Joseph E. Michelotti, Vern A. Henery
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Aug 23, 1985
Inventors
Joseph E. Michelotti
Vern A. Henery
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.