Granted Patent
Utility
US 4,855,899 · App. 07/037,707
Multiple I/O bus virtual broadcast of programmed I/O instructions
Inventor:
Stephen D. Presant
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Apr 13, 1987
Inventor
Stephen D. Presant
Assignee (at issue)
Prime Computer, 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.