Granted Patent
Utility
US 4,910,685 · App. 06/530,607
Video circuit including a digital-to-analog converter in the monitor which converts the digital data to analog currents before conversion to analog voltages
Inventors:
Bruce Imsand, Christopher Thomas
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Sep 9, 1983
Inventors
Bruce Imsand
Christopher Thomas
Assignee (at issue)
Intergraph Corporation
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.