Granted Patent
Utility
US 4,914,580 · App. 07/112,581
Communication system having interrupts with dynamically adjusted priority levels
Inventors:
Craig W. Jensen, Frederick R. Keller
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Oct 26, 1987
Inventors
Craig W. Jensen
Frederick R. Keller
Assignee (at issue)
American Telephone and Telegraph, Co.
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.