Granted Patent
Utility
US 4,463,374 · App. 06/323,318
Color plotter interface and control circuit
Inventor:
Leroy J. Thompson
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Nov 20, 1981
Inventor
Leroy J. Thompson
Assignee (at issue)
Trilog, 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.