Granted Patent
Utility
US 4,585,908 · App. 06/670,510
Data entry and display control circuit
Inventor:
Louis W. Smith
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Nov 13, 1984
Inventor
Louis W. Smith
Assignee (at issue)
GTE Communication Systems 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.