Granted Patent
Utility
US 4,783,739 · App. 06/459,333
Input/output command processor
Inventor:
Powell L. Calder
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Jan 19, 1983
Inventor
Powell L. Calder
Assignee (at issue)
Geophysical Service, 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.