Granted Patent
Utility
US 4,400,772 · App. 06/221,467
Method and apparatus for direct memory access in a data processing system
Inventors:
Douglas Wright Broyles, Ronald S. Palmer
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Dec 30, 1980
Inventors
Douglas Wright Broyles
Ronald S. Palmer
Assignee (at issue)
International Memories, 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.