Granted Patent
Utility
US 4,486,833 · App. 06/428,874
Microprocessor peripheral control circuit
Inventor:
Douglas Streeter Daudelin
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Sep 30, 1982
Inventor
Douglas Streeter Daudelin
Assignee (at issue)
AT&T Bell Laboratories
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.