Granted Patent
Utility
US 4,979,738 · App. 06/558,622
Constant spatial data mass RAM video display system
Inventor:
Jeffrey E. Frederiksen
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Dec 6, 1983
Inventor
Jeffrey E. Frederiksen
Assignee (at issue)
Midway Manufacturing Company
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.