Granted Patent
Utility
US 4,293,909 · App. 06/052,336
Digital system for data transfer using universal input-output microprocessor
Inventors:
Robert D. Catiller, Brian K. Forbes
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Jun 27, 1979
Inventors
Robert D. Catiller
Brian K. Forbes
Assignee (at issue)
Burroughs, 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.