Granted Patent
Utility
US 4,847,752 · App. 06/748,635
Data processing apparatus having an input/output controller for controlling interruptions
Inventor:
Mineo Akashi
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jun 25, 1985
Inventor
Mineo Akashi
Assignee (at issue)
NEC 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.