Granted Patent
Utility
US 4,738,441 · App. 06/770,793
Data scanning apparatus
Inventor:
George H. Leonard
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Aug 29, 1985
Inventor
George H. Leonard
Assignee (at issue)
GTECH Corporation
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.