Granted Patent
Utility
US 4,001,699 · App. 05/613,326
Bar graph digital interface circuit
Inventors:
William Michael Denny, Russell Louis Hagen, Steve Leung
Patented Case
View Patent ↗
Granted: Jan 4, 1977
Filed: Sep 15, 1975
Inventors
William Michael Denny
Russell Louis Hagen
Steve Leung
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.