Granted Patent
Utility
US 4,573,120 · App. 06/547,461
I/O Control system for data transmission and reception between central processor and I/O units
Inventors:
Yoshichika Ichimiya, Tsuneta Sudo, Turo Takehisa, Katsumi Shimada
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Nov 1, 1983
Inventors
Yoshichika Ichimiya
Tsuneta Sudo
Turo Takehisa
Katsumi Shimada
Assignee (at issue)
Takeda Riken Co., Ltd.
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.