Granted Patent
Utility
US 4,883,940 · App. 07/215,990
Heatable composite backlight panel
Inventor:
Stephen P. Tokarz
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Jul 7, 1988
Inventor
Stephen P. Tokarz
Assignee (at issue)
ASC REGENITY LIMITED
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.