Granted Patent
Utility
US 4,791,580 · App. 06/918,552
Display processor updating its color map memories from the serial output port of a video random-access memory
Inventors:
James Vig Sherrill, David L. Sprague
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Oct 14, 1986
Inventors
James Vig Sherrill
David L. Sprague
Assignee (at issue)
Technology, Inc. 64
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.