Granted Patent
Utility
US 4,456,970 · App. 06/329,422
Interrupt system for peripheral controller
Inventors:
Robert D. Catiller, Brian K. Forbes
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Dec 10, 1981
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.