Granted Patent
Utility
US 4,861,680 · App. 07/155,068
Bronze-grey glazing film and window made therefrom
Inventors:
Stephen F. Meyer, Claude Sans
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Feb 11, 1988
Inventors
Stephen F. Meyer
Claude Sans
Assignee (at issue)
Southwall Technologies 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.