Granted Patent
Utility
US 4,975,698 · App. 07/448,039
Modified quasi-gray digital encoding technique
Inventor:
Mark R. Kagey
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Dec 8, 1989
Inventor
Mark R. Kagey
Assignee (at issue)
TRW Limited
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.